Sources & Methodology

Where the data comes from

Every record is compiled from the public filings of the state agency that regulates oil and gas in that state. Nothing here is modelled or purchased.

How production is attributed

This is the part most well maps quietly get wrong, so it is worth stating plainly.

New Mexico and New York report production per wellbore. Those figures are reported here exactly as filed.

Texas and Kansas report production per lease, not per well. A Texas lease ID such as TXLO10188397C163 identifies a lease, not a wellbore. Where a lease has a single wellbore, the lease total is that well's total and we label it exact. Where a lease has several wellbores, we divide the lease total across them — that number is an estimate, and every page that shows one says so. County, formation and operator totals are unaffected either way, because the parts always sum back to the filed lease total.

Oklahoma and Colorado production is not currently attributed at well level.

Known limits

• Spud dates are sparse outside New Mexico. Texas and Oklahoma filings largely omit them, so "recently spudded" counts understate activity in those states.
• Total depth is missing or implausible on a small number of records; values outside 100–30,000 ft are excluded from averages.
• Operator names are as filed. The same company can appear under several spellings, and we do not merge them, because merging would silently reassign wells.
• Formation names are as filed by the operator and are not normalised to a single stratigraphic nomenclature.
• 685,765 of 2,245,032 mapped wells have production on file.

Corrections

If you operate a well and something here is wrong, tell us and we will fix it: [email protected].

This page describes a public dataset. It is not investment advice and nothing on it is an offer to sell or a solicitation to buy any security.