LEASES · O-10-42095 · OIL · DISTRICT 08
Cox
XTO Energy Inc. · Martin County · Spraberry (Trend Area) field
Cox is an RRC oil lease (O-10-42095) in Martin County operated by Xto Energy Inc., with one well completed on it.
It has reported 17.2K barrels of oil and 15.9K mcf of gas since April 2011, last reporting volume in August 2025 (statewide data runs through April 2026).
It reported 142 barrels of oil in the 12 months through April 2026, down 72% on the year before; the lease peaked at 870 barrels in April 2011.
3 operators have filed production on it, most recently Xto Energy Inc. since November 2014.
- 17.2K
- bbl oil, all reported
- 15.9K
- mcf gas incl. casinghead
- 142
- bbl oil, 12 months through Apr 2026
- -72%
- vs the 12 before
- 1
- wells completed on it
- 870
- peak month, bbl (Apr 2011)
PDQ LEASE REPORTS · FIRST APR 2011 · LAST VOLUME AUG 2025 · 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.
12 months through Apr 2026 142 · prior 12 515(-72%)
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.
12 months through Apr 2026 0 · prior 12 15(-100%)
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.
- Berry Oil Comp.Mar 2011 → Jun 2014 · 40 mo
- Linn Operating, Inc.Jul 2014 → Oct 2014 · 4 mo
- XTO Energy Inc.Nov 2014 → Jul 2026 · 141 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-10-42095, documented in the API reference.