Petrora

LEASES · O-1-18092 · OIL · DISTRICT 01

Gentry Ranch

Reporting

First Rock, Inc. · McMullen County · A.W.P. (Olmos) field

Gentry Ranch is an RRC oil lease (O-1-18092) in Mcmullen County operated by First Rock, Inc., with 6 wells completed on it.

It has reported 117K barrels of oil and 1.45M mcf of gas since August 2014, last reporting volume in April 2026 (statewide data runs through April 2026).

The last 12 reported months total 3.62K barrels of oil, down 6% on the year before; the lease peaked at 4.7K barrels in October 2015.

4 operators have filed production on it, most recently First Rock, Inc. since June 2021.

117K
bbl oil, all reported
1.45M
mcf gas incl. casinghead
3.62K
bbl oil, last 12 reported
-6%
vs the 12 before
6
wells completed on it
4.7K
peak month, bbl (Oct 2015)

PDQ LEASE REPORTS · FIRST AUG 2014 · 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 3,615 · prior 12 3,837(-6%)

01K2K2017201820192020202120222023202420252026

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 59,721 · prior 12 60,197(-1%)

020K40K2017201820192020202120222023202420252026

Decline curve

A MODEL FITTED TO THE REPORTS, NOT A REPORT

An Arps hyperbolic curve fitted to the 119 reporting months of oil since the peak in May 2016. The dashed line below is that curve, drawn over the months it was fitted to and then 24 months past the last report; where it parts from the columns is where the model stops describing the lease. It describes the trend of past reports. It does not know about recompletions, shut-ins, or new wells, and it is shown only when the lease reported within the last year and the curve explains most of the history.

26%
first-year decline from the peak (nominal Di 33%)
0.6
b factor (hyperbolic)
0.74
fit R²
34.3K
bbl remaining on the curve, to 1 per month

Oil, barrels reported months since the peak, with the fitted curve and its projection

Last 12 months 3,615 · prior 12 3,837(-6%)

01K2K201720182019202020212022202320242025202620272028

Fitted hyperbolic curve from the May 2016 peak, dashed 24 months past the last report

Projected monthOct 2026Apr 2027Oct 2027Apr 2028
On the curve, bbl per month193183174166

Quoting a projected figure as if it were reported would be wrong; the reported figures are the ones in the charts and the table view. How production is reported →

Who reported it

Each run of months one operator filed the production report, oldest first.

  1. Wapiti Operating, LLCAug 2014 → Mar 2015 · 8 mo
  2. Clearly Petroleum, LLCApr 2015 → Apr 2020 · 61 mo
  3. GTG Operating, LLCMay 2020 → May 2021 · 13 mo
  4. First Rock, Inc.Jun 2021 → Jul 2026 · 62 mo

Wells on the lease

FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL

6

wells completed on the lease

Producing
5
Shut IN
1

Operates them now

First Rock Inc.
6

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-1-18092, documented in the API reference.