Petrora

LEASES · O-8-30136 · OIL · DISTRICT 7B

Guitar "79"

Reporting

Grayrock Energy II, LLC · Callahan County · Callahan County Regular field

Guitar "79" is an RRC oil lease (O-8-30136) in Callahan County operated by Grayrock Energy II, LLC, with one well completed on it.

It has reported 2.64K barrels of oil since April 2008, last reporting volume in April 2026 (statewide data runs through April 2026).

The last 12 reported months total 80 barrels of oil; the lease peaked at 183 barrels in August 2008.

5 operators have filed production on it, most recently Grayrock Energy II, LLC since January 2024.

2.64K
bbl oil, all reported
0
mcf gas incl. casinghead
80
bbl oil, last 12 reported
—
vs the 12 before
1
wells completed on it
183
peak month, bbl (Aug 2008)

PDQ LEASE REPORTS · FIRST APR 2008 · 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 80 · prior 12 58(+38%)

010202017201820192020202120222023202420252026

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. L.C.S. Production CompanyApr 2008 → Apr 2009 · 13 mo
  2. Plantation Operating, LLCMay 2009 → Nov 2011 · 31 mo
  3. Merit Energy CompanyDec 2011 → May 2017 · 66 mo
  4. Rover Petroleum Operating, LLCJun 2017 → Dec 2023 · 79 mo
  5. Grayrock Energy II, LLCJan 2024 → Jul 2026 · 31 mo

Wells on the lease

FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL

1

wells completed on the lease

Plugged
1

Operates them now

Martin Oil Co.
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-8-30136, documented in the API reference.