OXY vs PTEN

Occidental Petroleum Corporation

Occidental Petroleum Corporation, together with its subsidiaries, engages in the acquisition, exploration, and development of oil and gas properties in the United States, the Middle East, Africa, and Latin America. The company operates through three segments: Oil and Gas, Chemical, and Marketing and Midstream. The company's Oil and Gas segment explores for, develops, and produces oil and condensate, natural gas liquids (NGLs), and natural gas. Its Chemical segment manufactures and markets basic chemicals, including chlorine, caustic soda, chlorinated organics, potassium chemicals, ethylene dichloride, chlorinated isocyanurates, sodium silicates, and calcium chloride; vinyls comprising vinyl chloride monomer, polyvinyl chloride, and ethylene. The company's Midstream and Marketing segment gathers, processes, transports, stores, purchases, and markets oil, condensate, NGLs, natural gas, carbon dioxide, and power. This segment also trades around its assets consisting of transportation and storage capacity; and invests in entities. Occidental Petroleum Corporation was founded in 1920 and is headquartered in Houston, Texas.

Patterson-UTI Energy Inc.

Patterson-UTI Energy, Inc., through its subsidiaries, provides onshore contract drilling services to oil and natural gas operators in the United States and Canada. It operates through three segments: Contract Drilling Services, Pressure Pumping Services, and Directional Drilling Services. The Contract Drilling Services segment markets its contract drilling services primarily in west Texas and southeastern New Mexico, north central and east Texas, northern Louisiana, Colorado, Wyoming, North Dakota, south Texas, western Oklahoma, Pennsylvania, Ohio, and West Virginia. As of December 31, 2020, this segment had a drilling fleet of 210 marketable land-based drilling rigs. The Pressure Pumping Services segment offers pressure pumping services that consist of well stimulation for the completion of new wells and remedial work on existing wells, as well as hydraulic fracturing, cementing, and acid pumping services in Texas and the Appalachian region. The Directional Drilling Services segment provides a suite of directional drilling services, including directional drilling and measurement-while-drilling services; supply and rental of downhole performance motors and wireline steering tools; and services that enhance the accuracy of horizontal wellbore placement. It also service equipment to drilling contractors, as well as provides electrical controls and automation to the energy, marine, and mining industries in North America and other markets; and owns and invests in oil and natural gas assets as a non-operating working interest owner located principally in Texas and New Mexico. The company was founded in 1978 and is headquartered in Houston, Texas.