<Li> Associated Oil Company </Li> <Li> Atlantic Richfield Company </Li> <Li> ATP Oil and Gas </Li> <Ul> <Li> Baker Hughes </Li> <Li> Berkshire Hathaway Energy </Li> <Li> Berry Petroleum Company </Li> <Li> Bill Barrett Corporation </Li> <Li> Bio-Blend Fuels </Li> <Li> BJ Services </Li> <Li> Black Stone Minerals </Li> <Li> Blacksands Pacific </Li> <Li> BNK Petroleum </Li> <Li> Boyett Petroleum </Li> <Li> Buckeye Partners </Li> </Ul>

Name of oil and gas company in usa