Taken from Occidental's 2012 annual video
Sterling Resources Ltd. is a Canada based energy company actively engaged in the exploration, development and production of crude oil...
Regal Petroleum plc is engaged in development, production and exploration of oil and gas. It operates under-developed gas and condensate...
Occidental Petroleum Corp.
10889 Wilshire Boulevard
Los Angeles , CA 90024-4201
SIC Code: 1311