LEASES · O-1-12190 · OIL · DISTRICT 01

Whitmire, W.A.

Reporting

El Mesteno Energy LLC · McMullen County · A.W.P. (Olmos) field

Whitmire, W.A. is an RRC oil lease (O-1-12190) in Mcmullen County operated by El Mesteno Energy LLC, with 2 wells completed on it.

It has reported 82K barrels of oil and 450K mcf of gas since January 1993, last reporting volume in April 2026 (statewide data runs through April 2026).

The last 12 reported months total 1.06K barrels of oil, up 7% on the year before; the lease peaked at 1.85K barrels in November 2011.

8 operators have filed production on it, most recently El Mesteno Energy LLC since April 2026.

82K
bbl oil, all reported
450K
mcf gas incl. casinghead
1.06K
bbl oil, last 12 reported
+7%
vs the 12 before
2
wells completed on it
1.85K
peak month, bbl (Nov 2011)

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 1,064 · prior 12 999(+7%)

02004002017201820192020202120222023202420252026

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 7,556 · prior 12 5,178(+46%)

02K4K6K2017201820192020202120222023202420252026

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. Welhausen Operating Co., Inc.Jan 1993 → Oct 2001 · 106 mo
  2. Welhausen Operating Company, LPNov 2001 → Dec 2011 · 122 mo
  3. Layline Petroleum I, LLCJan 2012 → May 2013 · 17 mo
  4. Wapiti Operating, LLCJun 2013 → Mar 2015 · 22 mo
  5. Clearly Petroleum, LLCApr 2015 → Apr 2020 · 61 mo
  6. GTG Operating, LLCMay 2020 → May 2021 · 13 mo
  7. First Rock, Inc.Jun 2021 → Mar 2026 · 58 mo
  8. El Mesteno Energy LLCApr 2026 → Jul 2026 · 4 mo

Wells on the lease

FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL

2

wells completed on the lease

Producing
2

Operates them now

Newest permits

All 2 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.

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