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WACHOVIA CORPORATION
Acquired by Wells Fargo & Company in 2008.



O'BRIEN OPERATING COMPANY
Acquired by Vernon E. Faulconer Inc.



OASIS OIL COMPANY
Replaced by Waha Libyan Co



OCCIDENTAL OF LIBYA INC
Replaced by Zueitina Oil Co



OCCIDENTAL OF OMAN INC
See Occidental Petroleum Corporation.



OCELOT ENERGY INC
Domestic assets sold to NAL Resources and international assets sold to Ocelot International in 1999.



ODECO INC
See Murphy Exploration & Production Company



ODESSA EXPLORATION INC
Key Energy Services Inc sold off in August 2003.



NIM PETROLEUM CORPORATION
Changed name to Petrorep Resources Limited in September 1992.



BASSANO PETROLEO CORPORATION
See Oakmark Enterprises Limited.



OFFSHORE ENERGY DEVELOPMENT CORP
see Titan Exploration Inc



BROOKS WELL SERVICING INC
Acquired by Key Energy in December 1996. See Key Energy Services Inc



OIL & NATURAL GAS COMMISSION OF INDIA
Converted into Oil & Natural Gas Corporation Limited in 1993.



CONSOLIDATED ODYSSEY EXPLORATION INC
Amalgamated with US Oil and Gas Resources Inc to form Odyssey Petroleum Corp in August 2005



OILEX INC
FIled for Chapter 7 bankruptcy in December 1998



OKLAHOMA GAS AND ELECTRIC COMPANY
see OG&E Electric Services Inc



OLD DOMINION POWER COMPANY
Regulated electric utility owned by Kentucky Utilities.



NORTHERN REEF EXPLORATION LIMITED
Acquired by Penn West Petroleum Limited in September 1995.



OLYMPIA ENERGY INC
Acquired by Provident Energy Trust in 2004.



OMEGA HYDROCARBONS LTD
Dissolved August 1996.



ONYX GATHERING COMPANY
Sold gas processing facility to Crosstex



OPINAC EXPLORATION LTD
Acquired by Marathon Oil Corp



ORBIT OIL & GAS LTD
Acquired by Sunoma Energy Corp in January 1998



ORION ENERGY TRUST
Merged with ARC Energy Trust in March 1999



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800-829-2002