LEASES · O-10-442 · OIL · DISTRICT 08
Block 31 Unit
ReportingOXY USA EOR, LLC · Crane County · Block 31 (Devonian) field
Block 31 Unit is an RRC oil lease (O-10-442) in Crane County operated by Oxy USA Eor, LLC, with 330 wells completed on it.
It has reported 15.2M barrels of oil and 971M mcf of gas since January 1993, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 42.2K barrels of oil, down 32% on the year before; the lease peaked at 184K barrels in January 1993.
5 operators have filed production on it, most recently Oxy USA Eor, LLC since May 2026.
- 15.2M
- bbl oil, all reported
- 971M
- mcf gas incl. casinghead
- 42.2K
- bbl oil, last 12 reported
- -32%
- vs the 12 before
- 330
- wells completed on it
- 184K
- peak month, bbl (Jan 1993)
PDQ LEASE REPORTS · FIRST JAN 1993 · LAST VOLUME APR 2026 · STATEWIDE DATA THROUGH APR 2026
Oil by month
Barrels reported on Form PR for the whole lease. The latest months are revised upward as late reports arrive.
Last 12 months 42,201 · prior 12 62,459(-32%)
Gas by month
Gas-well gas plus casinghead gas, mcf. On an oil lease all gas is reported as casinghead. The latest months are revised upward as late reports arrive.
Last 12 months 4,268,890 · prior 12 5,311,503(-20%)
Decline curve
None shown. Petrora fits an Arps curve only when the last ten years of oil reports follow one decline closely enough to project (R² of 0.7 or better over at least a year since the peak). This lease's recent history does not, so a projection would be a guess dressed as a number.
Who reported it
Each run of months one operator filed the production report, oldest first.
- Arco Oil & Gas Co.Jan 1993 → May 1994 · 17 mo
- Arco PermianJun 1994 → Dec 2001 · 91 mo
- BP America Production CompanyJan 2002 → Oct 2010 · 106 mo
- OXY USA Inc.Nov 2010 → Apr 2026 · 186 mo
- OXY USA EOR, LLCMay 2026 → Jul 2026 · 3 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
330
wells completed on the lease
- NO Type on File
- 154
- Producing
- 58
- Shut IN
- 57
- Plugged
- 52
- Injection
- 9
Operates them now
About this data
Monthly oil, gas, and casinghead from the RRC PDQ production dump, which lags the reporting month by two to three months; figures shown through Apr 2026. Wells from completion reports; operator runs from who filed each month's report.
Developers: this page as JSON is GET /v1/data/leases/tx/o-10-442, documented in the API reference.