Not all oil and gas operators are the same. The company running your well could be a multinational corporation, a mid-size independent, or a two-person outfit. The type of operator affects how reliably you get paid, how responsive they are to questions, and what happens when things go wrong.

Major Operators

Majors are the largest, most well-known oil and gas companies. These are vertically integrated corporations with operations spanning exploration, production, refining, and retail. Examples include ExxonMobil, Chevron, Shell, BP, and TotalEnergies. Note that ConocoPhillips is often grouped with the majors by size, but it is technically a large independent: it spun off its downstream operations as Phillips 66 in 2012 and focuses exclusively on exploration and production.

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Large Independents

Large independents focus exclusively on exploration and production (E&P) without the refining and retail operations of the majors. Companies like ConocoPhillips, Devon Energy, Diamondback Energy, and Coterra Energy fall into this category. (Some former large independents have been absorbed through recent mergers: Pioneer Natural Resources was acquired by ExxonMobil in 2024, Marathon Oil was acquired by ConocoPhillips in 2024, and Continental Resources was taken private by the Hamm family in 2022.)

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Small Independents

Small independents range from companies with a few dozen employees to those with a few hundred. They may operate in one state or one basin. Many are privately held.

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Very Small Operators

At the smallest end are operators running a handful of wells, sometimes as a side business. These are common in mature basins like Kansas and parts of Oklahoma where conventional vertical wells have been producing for decades.

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How to Find Out Who Your Operator Is

Check your royalty check stub for the company name. If you're not receiving checks, search the state oil and gas commission website by your property's legal description. The commission's records show the current operator of record for each well.

Why It Matters

Understanding what kind of operator runs your well helps you: