A 50% cut in Petrominerales' (OTCPK:PMGLF) market value has left its equity and net debt valued at the cheapest multiple to profit among any oil and gas explorer in the world with a market value higher than $250M, according to Bloomberg, which speculates its reserves, estimated at 40M-plus barrels of mostly high-quality light oil, could attract suitors such as Enbridge (NYSE:ENB), TransCanada (NYSE:TRP) or Pacific Rubiales (PEGFF.PK).