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PORTLAND, OR -- (Marketwire) -- 08/03/12 -- NW Natural (NYSE: NWN)
___________________________________________________

  • Earnings for the second quarter of 2012 were 5 cents per share on net income of $1.4 million, compared to 8 cents per share on net income of $2.2 million for the second quarter of 2011.
  • Earnings for the first six months of 2012 were $1.56 per share on net income of $42.0 million, compared to $1.61 per share on net income of $43.0 million for the first six months of 2011.
  • Customer refunds totaling $39 million related to lower wholesale natural gas prices were credited to utility customer bills beginning in June 2012.
  • Utility customer growth rate was 0.9 percent for the 12-month period ended June 30, 2012, compared to 0.8 percent for same period in 2011.
  • Earnings-per-share guidance for 2012 reaffirmed to be in the range of $2.35 to $2.55.

___________________________________________________

Northwest Natural Gas Company (NWN), dba NW Natural (NYSE: NWN), reported earnings of 5 cents per share on net income of $1.4 million for the second quarter of 2012, compared to earnings of 8 cents per share on net income of $2.2 million for the same period of 2011. The company typically reports lower earnings during the second and third quarters due to lower volumes used in spring and summer months. Earnings per share for the first six months of 2012 were $1.56 on net income of $42.0 million, compared to $1.61 per share on net income of $43.0 million for the first six months of 2011.

"We continued to take advantage of the current low gas price environment for our customers," said Gregg Kantor, President and CEO of NW Natural. "The benefit of these low prices resulted in an early refund to our Oregon and Washington utility customers of $39 million, which was applied to customers' bills beginning in June. It was gratifying to be able to pass those savings along to customers early."

Second quarter 2012 financial and operating results
Consolidated operations produced second quarter net income of $1.4 million (5 cents per share), compared to $2.2 million (8 cents per share) for the same period of the prior year. The company's utility operations earned $0.3 million (1 cent per share), compared to $1.1 million (4 cents per share) for the same quarter of the prior year. Gas storage contributed net income of $1.1 million (4 cents per share), compared to $1.3 million (5 cents per share) for the second quarter of 2011. Utility results for the second quarter primarily reflected higher operating costs and the effects of warmer weather on margin revenues in 2012 compared to the prior year, which was significantly colder than average. Gas storage results were lower due to higher interest expense from Gill Ranch's $40 million of long-term debt and lower storage prices, partially offset by higher contracted capacity at Gill Ranch.

Utility customer growth rate remains around 1 percent
NW Natural's customer growth rate for the trailing 12-month period ending June 30, 2012 was 0.9 percent, with the company adding approximately 5,900 new customers during the period. This compared to an annual growth rate of 0.8 percent a year ago.

Early gas cost credits to customers
The company received approval from the Public Utility Commission of Oregon (OPUC) and the Washington Utilities and Transportation Commission (WUTC) to refund $35 million to its Oregon customers and $4 million to its Washington customers as a result of lower wholesale natural gas prices. These refunds were credited to customers' bills beginning in June 2012 rather than in November when purchased gas adjustments would typically be filed for the next heating season.

NW Natural also received approval from the OPUC to provide its Oregon customers with another $9 million credit, also beginning in June, related to revenues from gas storage and asset management services that are part of a separate regulatory mechanism.

Gas reserves investment update
The company remains on track to invest approximately $45-$55 million a year over a five-year period that began in 2011, to acquire long-term gas reserves on behalf of its utility customers. At the end of the five-year period, the company expects to have invested a total of $250 million. This investment with Encana Oil & Gas (USA) began in May 2011 and covers a portion of the expected drilling costs in exchange for working interests in multiple sections of the Jonah Field in Wyoming. The drilling area includes both future and currently producing wells. NW Natural's total net investment to date was $76.0 million through June 30, 2012.

Results of utility operations
NW Natural's total gas sales and transportation deliveries for the second quarter of 2012, excluding deliveries of gas stored for others, were 219 million therms, down 10 percent from 243 million therms for 2011's second quarter. The decrease in usage was mainly due to weather, which was 25 percent warmer compared to the prior year and 3 percent colder than average. Margin revenues from utility operations for the second quarter of 2012 increased 2 percent to $61.4 million, compared to $60.0 million for 2011. The 2012 net margin increase over last year was largely due to a one-time, pre-tax $7.4 million charge taken in the second quarter of 2011 for the repeal of an Oregon utility tax law, which negatively impacted last year's second quarter and six month results. Excluding the utility tax charge, margin for the second quarter of 2012 decreased by $6.1 million, primarily due to the earnings impact of colder weather in the second quarter of 2011.

Volumes sold to residential and commercial customers for the second quarter of 2012 were 108 million therms, down 17 percent from 130 million therms for the second quarter of 2011, mainly due to warmer weather compared to last year. Utility margins from residential and commercial customers for the quarter totaled $52.7 million, a decrease of 10 percent over the second-quarter of 2011's margin of $58.4 million. These amounts included our weather normalization and decoupling adjustments, which adjusted margin down by $0.2 million for 2012, compared to a margin decrease of $2.6 million for the second quarter of 2011. The decrease in margin largely reflects the warmer weather in 2012 compared to last year's colder second quarter as the company's weather normalization mechanism phases out in May.

Gas deliveries to industrial customers for the second quarter of 2012 were 111 million therms for the second quarter of 2012, compared to 113 million therms for the second quarter of 2011. Margin from industrial customers was unchanged at $6.8 million for the second quarters of 2012 and 2011.

General rate case
As previously reported, NW Natural filed a general rate case in Oregon in December 2011, the first such case filed by the company since 2002. In early July, the company, the Public Utility Commission of Oregon (OPUC) staff, and other parties filed a partial settlement in the rate case. While the partial settlement resolves several issues in the case, resolution was not reached on terms of other issues, including capital structure and rates of return. As a result of the partial settlement, NW Natural has revised its application to request a $35.9 million (5.1 percent) rate increase reflecting an overall rate of return on average rate base of 8.14 percent based upon a 10.2 percent return on equity. The overall request addresses higher utility costs associated with maintaining service to customers and safe and reliable pipeline system operations. Hearings are scheduled in late August and results of this rate case are expected in late October, with rates effective Nov. 1, 2012.

Results of gas storage operations
The company's gas storage segment consists of non-utility operations at the company's Mist underground storage facility in Oregon and at the Gill Ranch Storage (GRS) underground facility in California. In addition, the company uses asset management services for available utility and non-utility storage and pipeline transportation capacity.

NW Natural's gas storage segment reported net income of $1.1 million on net operating revenues of $8.0 million for the second quarter of 2012, compared to $1.3 million and $7.2 million, respectively, for the second quarter of 2011. These results primarily reflect higher interest expense from Gill Ranch's $40 million of long-term debt and lower market prices for storage. This was partially offset by a slight improvement in operating income from GRS, which was primarily due to higher revenues from an increase in contracted capacity and lower-than-expected power costs.

Consolidated operations and maintenance expenses
Operations and maintenance expenses were $1.8 million higher for the second quarter of 2012 compared to 2011. This increase was primarily due to higher payroll costs at the utility related to the hiring of field employees for pipeline safety and customer service work, as well as higher employee benefit costs and rate case expenses. Partially offsetting these cost increases was a decrease in utility bad debt expense.

Year-to-Date (Six Month) Financial and Operating Highlights
Consolidated earnings per share for the first six months of 2012 were $1.56 on net income of $42.0 million, compared to $1.61 per share on net income of $43.0 million for the first six months of 2011. The company's utility operations contributed net income of $40.1 million ($1.49 per share), compared to $41.2 million ($1.54 per share), for the first six months of 2011. Gas storage contributed $1.9 million (7 cents per share), compared to $2.0 million (8 cents per share) for the same period of 2011.

Results of utility operations
NW Natural's total gas sales and transportation deliveries for the first six months of 2012, excluding deliveries of gas stored for others, were 627 million therms, down 3 percent from 644 million therms for 2011. The decrease in usage was mainly due to weather that was 9 percent warmer than a year ago and 4 percent colder than the average. Margin from utility operations in 2012 increased 3 percent to $194.6 million, compared to $189.2 million for 2011. As noted for second quarter results, the increase in utility margin was largely due to the one-time, pre-tax $7.4 million charge related to the repeal of utility tax legislation in 2011. Excluding this charge, utility margin was down $1.8 million over last year, primarily due to warmer weather in 2012, which was partially offset by a $2.0 million increase in gains from lower gas costs realized under the company's regulatory incentive sharing mechanism and a 0.9 percent increase in customer growth.

Volumes sold to residential and commercial customers for the first six months of 2012 were 384 million therms, down 5 percent from 403 million therms for the first six months of 2011 primarily due to 9 percent warmer weather than last year. Utility margin from residential and commercial customers for the first six months totaled $174 million, including weather normalization and decoupling adjustments, down 2 percent over margin for the first six months of 2011 of $178 million. NW Natural's weather and decoupling mechanisms adjusted margin up by $2.6 million for the first six months of 2012, compared to a margin adjustment increase of $0.3 million for the first six months of 2011. As noted above, the variance in the weather mechanism was primarily due to the mechanism phasing out in May.

Gas deliveries to industrial customers for the first six months of 2012 were 243 million therms, or 1 percent higher than 241 million therms for the same period last year. Margin from industrial customers remained steady at $14.4 million for the first six months of 2012, compared to $14.5 million for the prior year.

The company's gas cost incentive sharing mechanism in Oregon provided a margin contribution of $3.1 million for the first six months of 2012, compared to a contribution of $1.1 million for the first six months of 2011.

Results of gas storage operations
NW Natural's gas storage segment reported net operating revenues of $14.7 million for the first six months of 2012, compared to $12.5 million for the first six months of 2011. These results primarily reflect higher revenues from an increase in contracted capacity at GRS and lower-than-expected power costs, partially offset by lower operating income from the Mist facility, which was due to lower market prices for storage. In addition, we had lower revenues from third-party asset management services.

Consolidated operations and maintenance costs
Operations and maintenance expenses were $5.0 million higher for the first six months of 2012, compared to the same period for 2011. The increase in O&M was primarily due to higher utility payroll costs related to an increase in field service employees, higher utility costs for new employee training, the Oregon general rate case, technology system maintenance and other customer service costs, and higher utility employee benefit costs. Partially offsetting these increases was a reduction in gas storage operating expenses and a decrease in utility bad debt expense. Utility bad debt expense as a percent of revenues remained well below 1 percent at 0.22 percent for the 12 months ended June 30, 2012.

Cash flows and capital structure
Cash provided by operations for the first six months of 2012 was $175 million, compared to $169 million for the same period for 2011. The increase was primarily due to reductions in the utility's receivable balances reflecting utility customer refunds in June 2012 and higher balances from colder weather at the end of 2011, which were collected early in 2012. This increase was partially offset by decreases in other working capital items, including regulatory, taxes, and accounts payable balances.

NW Natural's capitalization at June 30, 2012 reflected 49.4 percent common equity, 43.0 percent long-term debt, and 7.6 percent short-term debt. This compared to 47.9 percent common equity, 37.0 percent long-term debt, and 15.1 percent of short-term debt and current maturities of long-term debt at June 30, 2011.

Earnings guidance reaffirmed for 2012
The company's earnings guidance remains in the range of $2.35 to $2.55 per share. The company's 2012 earnings guidance assumes a continued weak economic recovery and slow customer growth, normal weather conditions, and no significant changes in prevailing legislative and regulatory policies or outcomes.

Dividend declaration
The board of directors of NW Natural declared a quarterly dividend of 44.5 cents a share on the company's common stock on July 5, 2012. The dividends will be payable on Aug. 15, 2012 to shareholders of record on July 31, 2012. The company's indicated annual dividend rate is $1.78 per share.

Presentation of results
In addition to presenting results of operations and earnings amounts in total, NW Natural has expressed certain measures in this press release on an equivalent cents per share basis. These amounts reflect factors that directly impact the company's earnings. In calculating these financial measures, we allocate income tax expense based on the effective tax rate. NW Natural believes this per share information is useful because it enables readers to better understand the impact of these factors on its earnings.

Conference call arrangements
As previously reported, NW Natural will conduct a conference call and webcast starting at 8 a.m. Pacific Time (11 a.m. Eastern Time) on August 3rd, to review the company's 2012 second quarter and year-to-date financial and operating results. To hear the conference call live, please dial 1-877-317-6789 within the United States and 1-866-605-3852 from Canada. International callers can dial 1-412-317-6789. To access the conference replay, please call 1-877-344-7529 and enter the conference identification pass code (10015637). To hear the replay from international locations, please dial 1-412-317-0088.

To hear the conference by webcast, log on to NW Natural's corporate website at www.nwnatural.com.

Forward-Looking Statements
This report, and other presentations made by NW Natural from time to time, may contain forward-looking statements within the meaning of the U.S. Private Securities Litigation Reform Act of 1995. Forward-looking statements can be identified by words such as "anticipates," "intends," "plans," "seeks," "believes," "estimates," "expects" and similar references to future periods. Examples of forward-looking statements include, but are not limited to, statements regarding the following: plans, objectives, goals, strategies, future events, investments, estimated gas reserves and their financial value and benefit, customer growth, weather, commodity costs, customer rates, effects of financial derivatives, financial positions, revenues and earnings, dividends, performance, legislative actions and impact, rate case outcomes, regulatory actions or approvals, and other statements that are other than statements of historical facts.

Forward-looking statements are based on our current expectations and assumptions regarding our business, the economy and other future conditions. Because forward-looking statements relate to the future, they are subject to inherent uncertainties, risks and changes in circumstances that are difficult to predict. Our actual results may differ materially from those contemplated by the forward-looking statements. We caution you therefore against relying on any of these forward-looking statements. They are neither statements of historical fact nor guarantees or assurances of future performance. Important factors that could cause actual results to differ materially from those in the forward-looking statements are discussed by reference to the factors described in Part I, Item 1A "Risk Factors", and Part II, Item 7 and Item 7A "Management's Discussion and Analysis of Financial Condition and Results of Operations" and "Quantitative and Qualitative Disclosure about Market Risk" in the company's most recent Annual Report on Form 10-K and in Part I, Items 2 and 3 "Management's Discussion and Analysis of Financial Condition and Results of Operations" and "Quantitative and Qualitative Disclosures About Market Risk", and Part II, Item 1A, "Risk Factors", in the company's quarterly reports filed thereafter.

All forward-looking statements made in this report and all subsequent forward-looking statements, whether written or oral and whether made by or on behalf of the company, are expressly qualified by these cautionary statements. Any forward-looking statement speaks only as of the date on which such statement is made, and we undertake no obligation to publicly update any forward-looking statement, whether as a result of new information, future developments or otherwise, except as may be required by law. New factors emerge from time to time and it is not possible for the company to predict all such factors, nor can it assess the impact of each such factor or the extent to which any factor, or combination of factors, may cause results to differ materially from those contained in any forward-looking statements.

About NW Natural
NW Natural (NYSE: NWN) is headquartered in Portland, Ore., and provides safe, reliable, cost-effective natural gas service to about 681,000 residential, commercial, and industrial customers through 14,000 miles of mains and service lines in western Oregon and southwestern Washington. It is the largest independent natural gas utility in the Pacific Northwest. The company has $2.6 billion in total assets. The company operates and owns 16 Bcf of underground storage capacity in Mist, Ore., and also operates the 20 Bcf Gill Ranch underground storage facility in California, in which it owns a 75 percent undivided interest. Together, NW Natural and its subsidiaries currently own and operate underground gas storage facilities with storage capacity of approximately 31 Bcf in Oregon and California. Additional information is available at www.nwnatural.com.


                       NORTHWEST NATURAL GAS COMPANY
                       Comparative Income Statement
                        (Consolidated - Unaudited)


                                             Three Months Ended
                                 -----------------------------------------
(Thousands, except per share
 amounts)                         06/30/12   06/30/11    Change   % Change
                                 ---------- ---------- ---------  --------
Gross Operating Revenues         $  106,569 $  161,197 $ (54,628)      (34%)
Net Income                       $    1,409 $    2,193 $    (784)      (36%)

Diluted Average Shares of Common
 Stock Outstanding                   26,896     26,727       169         1%
Basic Earnings Per Share of
 Common Stock                    $     0.05 $     0.08 $   (0.03)      (38%)
Diluted Earnings Per Share of
 Common Stock                    $     0.05 $     0.08 $   (0.03)      (38%)

                                              Six Months Ended
                                 -----------------------------------------
(Thousands, except per share
 amounts)                         06/30/12   06/30/11    Change   % Change
                                 ---------- ---------- ---------  --------
Gross Operating Revenues         $  424,063 $  484,285 $ (60,222)      (12%)
Net Income                       $   42,016 $   42,966 $    (950)       (2%)

Diluted Average Shares of Common
 Stock Outstanding                   26,879     26,725       154         1%
Basic Earnings Per Share of
 Common Stock                    $     1.57 $     1.61 $   (0.04)       (2%)
Diluted Earnings Per Share of
 Common Stock                    $     1.56 $     1.61 $   (0.05)       (3%)

                                             Twelve Months Ended
                                 -----------------------------------------
(Thousands, except per share
 amounts)                          06/30/12   06/30/11   Change   % Change
                                 ---------- ---------- ---------  --------
Gross Operating Revenues         $  788,574 $  847,497 $ (58,923)       (7%)
Net Income                       $   62,948 $   65,137 $  (2,189)       (3%)

Diluted Average Shares of Common
 Stock Outstanding                   26,804     26,703       101         -
Basic Earnings Per Share of
 Common Stock                    $     2.35 $     2.44 $   (0.09)       (4%)
Diluted Earnings Per Share of
 Common Stock                    $     2.35 $     2.44 $   (0.09)       (4%)



NORTHWEST NATURAL GAS COMPANY
Consolidated Balance Sheets (unaudited)              June 30,     June 30,
Thousands                                              2012         2011
                                                   -----------  -----------
Assets:
Current assets:
  Cash and cash equivalents                        $     4,002  $     3,700
  Restricted cash                                            -          925
  Accounts receivable                                   13,459       39,104
  Accrued unbilled revenue                              12,921       15,031
  Allowance for uncollectible accounts                  (2,653)      (2,824)
  Regulatory assets                                     65,297       59,766
  Derivative instruments                                 2,142        4,433
  Inventories                                           68,868       71,229
  Gas Reserves                                          11,021          749
  Income taxes receivable                                3,119       26,285
  Other current taxes                                    8,606        9,496
                                                   -----------  -----------
    Total current assets                               186,782      227,894
                                                   -----------  -----------
Non-current assets:
  Property, plant and equipment                      2,720,037    2,612,147
  Less: Accumulated depreciation                       791,021      744,929
                                                   -----------  -----------
    Total property, plant and equipment - net        1,929,016    1,867,218
  Gas reserves                                          65,026       15,403
  Regulatory assets                                    366,981      326,081
  Derivative instruments                                 1,170        1,042
  Other investments                                     68,230       68,576
  Restricted cash                                        4,000            -
  Other non-current assets                              13,936       15,780
                                                   -----------  -----------
    Total non-current assets                         2,448,359    2,294,100
                                                   -----------  -----------
    Total assets                                   $ 2,635,141  $ 2,521,994
                                                   ===========  ===========
Capitalization and liabilities:
Capitalization:
  Common stock                                     $   352,955  $   344,451
  Retained earnings                                    392,082      376,489
  Accumulated other comprehensive income (loss)         (7,467)      (6,312)
                                                   -----------  -----------
    Total common stock equity                          737,570      714,628
  Long-term debt                                       641,700      551,700
                                                   -----------  -----------
    Total capitalization                             1,379,270    1,266,328
                                                   -----------  -----------
Current liabilities:
  Short-term debt                                      113,200      185,400
  Current maturities of long-term debt                       -       40,000
  Accounts payable                                      48,361       54,148
  Taxes accrued                                          5,205        6,805
  Interest accrued                                       5,607        5,127
  Regulatory liabilities                                20,748       25,784
  Derivative instruments                                29,407       25,986
  Other current liabilities                             42,336       37,574
                                                   -----------  -----------
    Total current liabilities                          264,864      380,824
                                                   -----------  -----------
Deferred credits and other non-current
 liabilities:
  Deferred tax liabilities                             440,073      398,825
  Regulatory liabilities                               280,295      265,703
  Pension and other postretirement benefit
   liabilities                                         185,844      130,985
  Derivative instruments                                 2,130        9,202
  Other non-current liabilities                         82,665       70,127
                                                   -----------  -----------
    Total deferred credits and other non-current
     liabilities                                       991,007      874,842
                                                   -----------  -----------
    Total capitalization and liabilities           $ 2,635,141  $ 2,521,994
                                                   ===========  ===========



NORTHWEST NATURAL GAS COMPANY
Consolidated Statements of Cash Flows (unaudited)
Thousands (three months ended June 30)                 2012         2011
                                                   -----------  -----------
Operating activities:
  Net income                                       $    42,016  $    42,966
  Adjustments to reconcile net income to cash
   provided by operations:
    Depreciation and amortization                       36,049       34,855
    Non-cash expenses related to qualified defined
     benefit pension plans                               4,109        3,655
    Contributions to qualified defined benefit
     pension plans                                     (18,400)     (16,445)
    Deferred environmental expenditures, net of
     recoveries                                         (3,925)      (1,770)
    Other                                                1,459         (819)
    Changes in assets and liabilities:
      Receivables                                      114,117       79,711
      Inventories                                        5,495        9,156
      Taxes accrued                                     (1,616)      11,007
      Accounts payable                                 (37,854)     (30,052)
      Interest accrued                                    (250)         (55)
      Deferred gas costs                               (11,830)       2,682
      Deferred tax liabilities                          28,676       27,516
      Other - net                                       17,336        6,328
                                                   -----------  -----------
    Cash provided by operating activities              175,382      168,735
                                                   -----------  -----------
Investing activities:
  Capital expenditures                                 (61,552)     (47,815)
  Utility gas reserves                                 (27,060)     (16,152)
  Other                                                     61           67
                                                   -----------  -----------
    Cash used in investing activities                  (88,551)     (63,900)
                                                   -----------  -----------
Financing activities:
  Common stock issued (purchased) - net, including
   common stock expense                                  2,910          (70)
  Long-term debt retired                               (40,000)     (10,000)
  Change in short-term debt                            (28,400)     (72,035)
  Cash dividend payments on common stock               (23,839)     (23,204)
  Other                                                    667          717
                                                   -----------  -----------
    Cash used in financing activities                  (88,662)    (104,592)
                                                   -----------  -----------
Increase (decrease) in cash and cash equivalents        (1,831)         243
Cash and cash equivalents - beginning of period          5,833        3,457
                                                   -----------  -----------
Cash and cash equivalents - end of period          $     4,002  $     3,700
                                                   ===========  ===========

Supplemental disclosure of cash flow information:
  Interest paid                                    $    21,652  $    20,770
  Income taxes paid                                $     2,648  $     1,522



                         NORTHWEST NATURAL GAS COMPANY
                             Financial Highlights
                                  (Unaudited)
                             Second Quarter - 2012

                                                 3 Months Ended
                                                    June 30,
(Thousands, except per share amounts)          2012         2011     Change
                                           -----------  -----------
Gross Operating Revenues                   $   106,569  $   161,197   (34%)
Cost of Sales                                   34,512       90,122   (62%)
Revenue Taxes                                    2,578        3,843   (33%)
                                           -----------  -----------
Net Operating Revenues                          69,479       67,232    3%
                                           -----------  -----------
Operating Expenses:
  O&M                                           32,124       30,374    6%
  General Taxes                                  7,417        6,659    11%
  D&A                                           18,099       17,546    3%
                                           -----------  -----------
  Total Operating Expenses                      57,640       54,579    6%
                                           -----------  -----------
Income from Operations                          11,839       12,653   (6%)
Other Income and Expense - net                     921        1,122   (18%)
Interest Expense - net                          10,464       10,266    2%
Income Tax Expense                                 887        1,316   (33%)
                                           -----------  -----------
Net Income                                 $     1,409  $     2,193   (36%)
                                           ===========  ===========
Common Shares Outstanding:
  Average for Period - basic                    26,812       26,673
  Average for Period - diluted                  26,896       26,727
  End of Period                                 26,827       26,673
Earnings per Share:
  Basic                                    $      0.05  $      0.08   (38%)
  Diluted                                  $      0.05  $      0.08
Dividends Paid Per Share                   $     0.445  $     0.435
Book Value Per Share - end of period       $     27.49  $     26.79
Market Closing Price - end of period       $     47.60  $     45.13
Balance Sheet Data - end of period:
  Total Assets                             $ 2,635,141  $ 2,521,994
  Common Stock Equity                      $   737,570  $   714,628
  Long-Term Debt                           $   641,700  $   591,700
  (including amounts due in one year)
Operating Statistics:
Total Customers - end of period                680,936      675,002   0.9%
Gas Deliveries (therms)
  Res. & Comm. Customers                       107,771      129,581
  Industrial Firm                                7,593        8,476
  Industrial Interruptible                      14,190       14,295
  Transportation                                89,463       90,400
                                           -----------  -----------
Total                                          219,017      242,752
Gas Revenues
  Res. & Comm. Customers                   $    83,706  $   140,109
  Industrial Firm                                4,477        6,880
  Industrial Interruptible                       4,955        8,407
  Transportation                                 3,800        3,912
  Regulatory adjustment for income taxes             -       (7,451)
  Other Revenues                                 1,578        2,088
                                           -----------  -----------
Total                                           98,516      153,945
Cost of Gas Sold - Utility                      34,498       90,054
Revenue Taxes                                    2,578        3,843
                                           -----------  -----------
Net Operating Revenues (Utility Margin)    $    61,440  $    60,048
                                           ===========  ===========
Degree Days
  Average (25-year average)                        683          683
  Actual                                           705          944
Colder (warmer) than Average                        3%          38%


                         NORTHWEST NATURAL GAS COMPANY
                             Financial Highlights
                                  (Unaudited)
                             Second Quarter - 2012

                                                 6 Months Ended
                                                    June 30,
(Thousands, except per share amounts)           2012        2011     Change
                                            ----------- -----------
Gross Operating Revenues                    $   424,063 $   484,285   (12%)
Cost of Sales                                   204,283     270,747   (25%)
Revenue Taxes                                    10,433      11,798   (12%)
                                            ----------- -----------
Net Operating Revenues                          209,347     201,740    4%
                                            ----------- -----------
Operating Expenses:
  O&M                                            66,540      61,546    8%
  General Taxes                                  16,253      14,824    10%
  D&A                                            36,049      34,855    3%
                                            ----------- -----------
  Total Operating Expenses                      118,842     111,225    7%
                                            ----------- -----------
Income from Operations                           90,505      90,515     -
Other Income and Expense - net                    1,926       2,336   (18%)
Interest Expense - net                           21,655      20,715    5%
Income Tax Expense                               28,760      29,170   (1%)
                                            ----------- -----------
Net Income                                  $    42,016 $    42,966   (2%)
                                            =========== ===========
Common Shares Outstanding:
  Average for Period - basic                     26,767      26,671
  Average for Period - diluted                   26,879      26,725
  End of Period                                  26,827      26,673
Earnings per Share:
  Basic                                     $      1.57 $      1.61   (2%)
  Diluted                                   $      1.56 $      1.61
Dividends Paid Per Share                    $     0.890 $     0.870
Book Value Per Share - end of period        $     27.49 $     26.79
Market Closing Price - end of period        $     47.60 $     45.13
Balance Sheet Data - end of period:
  Total Assets                              $ 2,635,141 $ 2,521,994
  Common Stock Equity                       $   737,570 $   714,628
  Long-Term Debt                            $   641,700 $   591,700
  (including amounts due in one year)
Operating Statistics:
Total Customers - end of period                 680,936     675,002   0.9%
Gas Deliveries (therms)
  Res. & Comm. Customers                        383,930     403,462
  Industrial Firm                                18,212      19,340
  Industrial Interruptible                       31,920      31,532
  Transportation                                193,114     189,832
                                             ---------- -----------
Total                                           627,176     644,166
Gas Revenues
  Res. & Comm. Customers                    $   370,720 $   433,714
  Industrial Firm                                12,786      15,725
  Industrial Interruptible                       15,003      18,734
  Transportation                                  7,754       7,974
  Regulatory adjustment for income taxes              -      (7,165)
  Other Revenues                                  3,013       2,690
                                            ----------- -----------
Total                                           409,276     471,672
Cost of Gas Sold - Utility                      204,253     270,664
Revenue Taxes                                    10,433      11,798
                                            ----------- -----------
Net Operating Revenues (Utility Margin)     $   194,590 $   189,210
                                            =========== ===========
Degree Days
  Average (25-year average)                       2,569       2,549
  Actual                                          2,659       2,918
Colder (warmer) than Average                         4%         14%


                        NORTHWEST NATURAL GAS COMPANY
                            Financial Highlights
                                 (Unaudited)
                            Second Quarter - 2012

                                                12 Months Ended
                                                   June 30,
(Thousands, except per share amounts)          2012        2011     Change
                                           ----------- -----------
Gross Operating Revenues                   $   788,574 $   847,497   (7%)
Cost of Sales                                  392,158     460,419   (15%)
Revenue Taxes                                   19,376      20,876   (7%)
                                           ----------- -----------
Net Operating Revenues                         377,040     366,202    3%
                                           ----------- -----------
Operating Expenses:
  O&M                                          130,297     123,454    6%
  General Taxes                                 30,710      27,904    10%
  D&A                                           71,198      68,052    5%
                                           ----------- -----------
  Total Operating Expenses                     232,205     219,410    6%
                                           ----------- -----------
Income from Operations                         144,835     146,792   (1%)
Other Income and Expense - net                   4,113       4,802   (14%)
Interest Expense - net                          43,028      42,187    2%
Income Tax Expense                              42,972      44,270   (3%)
                                           ----------- -----------
Net Income                                 $    62,948 $    65,137   (3%)
                                           =========== ===========
Common Shares Outstanding:
  Average for Period - basic                    26,750      26,648
  Average for Period - diluted                  26,804      26,703
  End of Period                                 26,827      26,673
Earnings per Share:
  Basic                                    $      2.35 $      2.44   (4%)
  Diluted                                  $      2.35 $      2.44
Dividends Paid Per Share                   $      1.77 $      1.72
Book Value Per Share - end of period       $     27.49 $     26.79
Market Closing Price - end of period       $     47.60 $     45.13
Balance Sheet Data - end of period:
  Total Assets                             $ 2,635,141 $ 2,521,994
  Common Stock Equity                      $   737,570 $   714,628
  Long-Term Debt                           $   641,700 $   591,700
  (including amounts due in one year)
Operating Statistics:
Total Customers - end of period                680,936     675,002   0.9%
Gas Deliveries (therms)
  Res. & Comm. Customers                       662,089     668,539
  Industrial Firm                               36,444      37,647
  Industrial Interruptible                      59,496      59,671
  Transportation                               377,335     373,488
                                           ----------- -----------
Total                                        1,135,364   1,139,345
Gas Revenues
  Res. & Comm. Customers                   $   681,361 $   741,203
  Industrial Firm                               27,648      31,115
  Industrial Interruptible                      31,087      36,153
  Transportation                                15,688      15,311
  Regulatory adjustment for income taxes             3      (3,462)
  Other Revenues                                 4,036       3,820
                                           ----------- -----------
Total                                          759,823     824,140
Cost of Gas Sold - Utility                     392,097     460,318
Revenue Taxes                                   19,376      20,876
                                           ----------- -----------
Net Operating Revenues (Utility Margin)    $   348,350 $   342,946
                                           =========== ===========
Degree Days
  Average (25-year average)                      4,285       4,265
  Actual                                         4,393       4,605
Colder (warmer) than Average                        3%          8%

Investor Contact:
Bob Hess
Phone: 503-220-2388
Email: bob.hess@nwnatural.com

or

Media Contact:
Kim Heiting
Phone: 503-220-2366
Email: kah@nwnatural.com

Source: Northwest Natural Gas Company