LEASES · O-10-59912 · OIL · DISTRICT 08
Welch-Cox E39D
ReportingPioneer Natural Res. USA, Inc. · Martin County · Spraberry (Trend Area) field
Welch-Cox E39d is an RRC oil lease (O-10-59912) in Martin County operated by Pioneer Natural Res. USA, Inc., with one well completed on it.
It has reported 288K barrels of oil and 394K mcf of gas since May 2023, last reporting volume in March 2026 (statewide data runs through April 2026).
The last 12 reported months total 66.1K barrels of oil, down 38% on the year before; the lease peaked at 22.8K barrels in January 2024.
- 288K
- bbl oil, all reported
- 394K
- mcf gas incl. casinghead
- 66.1K
- bbl oil, last 12 reported
- -38%
- vs the 12 before
- 1
- wells completed on it
- 22.8K
- peak month, bbl (Jan 2024)
PDQ LEASE REPORTS · FIRST MAY 2023 · LAST VOLUME MAR 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 66,086 · prior 12 106,019(-38%)
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 136,215 · prior 12 138,976(-2%)
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.
- Pioneer Natural Res. USA, Inc.May 2023 → Jul 2026 · 39 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
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-10-59912, documented in the API reference.