LEASES · O-1-11101 · OIL · DISTRICT 01

McCain, L.W.

Reporting

Old Chief Oil, LLC · Atascosa County · Somerset field

Mccain, L.W. is an RRC oil lease (O-1-11101) in Atascosa County operated by Old Chief Oil, LLC, with 6 wells completed on it.

It has reported 6.35K barrels of oil and 540 mcf of gas since January 1993, last reporting volume in April 2026 (statewide data runs through April 2026).

The last 12 reported months total 49 barrels of oil; the lease peaked at 173 barrels in November 1999.

5 operators have filed production on it, most recently Old Chief Oil, LLC since December 2025.

6.35K
bbl oil, all reported
540
mcf gas incl. casinghead
49
bbl oil, last 12 reported
—
vs the 12 before
6
wells completed on it
173
peak month, bbl (Nov 1999)

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 49 · prior 12 0

02040602017201820192020202120222023202420252026

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 0 · prior 12 0

012017201820192020202120222023202420252026

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. Grindl, Anthony R.Jan 1993 → Mar 2001 · 99 mo
  2. Partin, CharlesApr 2001 → Aug 2005 · 53 mo
  3. Seeker Oil Company II, Inc.Sep 2005 → Aug 2010 · 60 mo
  4. Global Training Academy, Inc.Sep 2010 → Nov 2025 · 183 mo
  5. Old Chief Oil, LLCDec 2025 → Jul 2026 · 8 mo

Wells on the lease

FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL

6

wells completed on the lease

Plugged
3
NO Type on File
2
Producing
1

Newest permits

All 6 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-1-11101, documented in the API reference.