COOK "21"
COOK "21" is a Texas oil lease in Martin County, Railroad Commission district 08, operated by Pioneer Natural Res. Usa, Inc. It has 9 wellbores on file with the Commission. Reported production runs from November 2008 to August 2026, totalling 341,371 barrels. The lease is shut in.
| Operator | Pioneer Natural Res. Usa, Inc. |
|---|---|
| Field | Spraberry (Trend Area) |
| County | Martin County, Texas |
| RRC district | 08 |
| Lease number | 39126 |
| Wellbores | 9 |
| Reported production | 341,371 bbl |
| First reported | November 2008 |
| Last reported | August 2026 |
Production figures are as reported to the Railroad Commission of Texas. The value shown is an estimate produced by fitting a decline curve to that reported history; it is not an offer or an appraisal.