conocophillips explores for, develops and produces crude oil and natural gas globally.

valero is the best-in-class producer of fuels and products that are essential to modern life. we are the largest global independent refiner and america’s largest producer of renewable fuels, advancing the future of sustainable energy. learn more.

chevron works to meet the world's growing demand for energy by exploring for oil and natural gas; refining and marketing gasoline; producing chemicals and more.

our purpose is reimagining energy for people and our planet. we want to help the world reach net zero and improve people’s lives. we want to be an energy company with purpose; one that is trusted by society, valued by shareholders and motivating for everyone who works at bp.

shell is a global group of energy and petrochemical companies. learn more about shell on our global website.

rely on dril-quip for oilfield solutions that let you work safer, smarter and greener. explore our range of well construction, drilling and production services.

all the latest news, prices, analysis and data for oil, energy, biofuels and carbon offsets markets from quantum commodity intelligence.

today, the aer is the single regulator of energy development in alberta—from application and exploration, to construction and operation, to decommissioning, closure, and reclamation.

citgo petroleum corporation is a refiner, transporter and marketer of motor fuels, lubricants, petrochemicals and other industrial products.

search oil & gas jobs. read the latest oil & gas news. rigzone is the world's leading resource for oil & gas jobs, news, events, and training.