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Learn About Oil & Gas Production

Data from state Railroad Commissions, explained simply. No jargon. No fluff. Just the facts about how oil and gas is found, drilled, and measured.

State: All States Texas Oklahoma New Mexico North Dakota Colorado Louisiana Wyoming Alaska California Pennsylvania West Virginia Utah Kansas Montana Ohio Michigan Mississippi Arkansas Illinois

Topic: All Topics Production Basins Regulation Glossary

California production

California Oil Production and CalGEM

Most people think of technology companies or farmland when they think of California. But California has been an oil-producing state since the 1860s. It still produces roughly 300,000 barrels of oil pe…

Mar 19, 2026 Read More

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