In 2022, annual production of associated-dissolved natural gas (or associated natural gas) increased 9% to 15.5 billion cubic feet per day (Bcf/d) in the major U.S. onshore crude oil-producing regions, mostly due to an 8% increase in crude oil production. Associated natural gas accounted for more than a third of total natural gas production in the Permian, Bakken, Eagle Ford, Niobrara, and Anadarko regions and 14% of all U.S. natural gas production.