Petrora

LEASES · O-10-31036 · OIL · DISTRICT 08

Lockhart

Reporting

Winn Operating, LLC · Andrews County · Martin (Second Simpson Sd.) field

Lockhart is an RRC oil lease (O-10-31036) in Andrews County operated by Winn Operating, LLC, with one well completed on it.

It has reported 352K barrels of oil and 89.9K mcf of gas since January 1993, last reporting volume in April 2026 (statewide data runs through April 2026).

The last 12 reported months total 9.86K barrels of oil, up 7% on the year before; the lease peaked at 1.93K barrels in February 1994.

5 operators have filed production on it, most recently Winn Operating, LLC since June 2022.

352K
bbl oil, all reported
89.9K
mcf gas incl. casinghead
9.86K
bbl oil, last 12 reported
+7%
vs the 12 before
1
wells completed on it
1.93K
peak month, bbl (Feb 1994)

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 9,861 · prior 12 9,197(+7%)

05001K1.5K2017201820192020202120222023202420252026

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 1,349 · prior 12 2,432(-45%)

02004006002017201820192020202120222023202420252026

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.

  1. Cross Timbers Operating CompanyJan 1993 → May 2000 · 89 mo
  2. Huntington Energy, L.L.C.Jun 2000 → Nov 2012 · 150 mo
  3. Saber Oil & Gas Ventures, LLCDec 2012 → Feb 2018 · 63 mo
  4. Mammoth Exploration LLCMar 2018 → May 2022 · 51 mo
  5. Winn Operating, LLCJun 2022 → Jul 2026 · 50 mo

Wells on the lease

FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL

1

wells completed on the lease

Producing
1

Operates them now

Winn Operating LLC
1

Newest permits

All 1 wells, searchable →

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-10-31036, documented in the API reference.