LEASES · O-10-21679 · OIL · DISTRICT 08

Deep Rock et al -A-

No volume since Jan 2023

Highmark Energy Operating, LLC · Andrews County · Shafter Lake (San Andres) field

Deep Rock ET AL -A- is an RRC oil lease (O-10-21679) in Andrews County operated by Highmark Energy Operating, LLC, with 4 wells completed on it.

It has reported 236K barrels of oil and 50.6K mcf of gas since January 1993, last reporting volume in January 2023 (statewide data runs through April 2026).

No volume was reported in the last 12 months; the last was in January 2023.

5 operators have filed production on it, most recently Highmark Energy Operating, LLC since March 2023.

236K
bbl oil, all reported
50.6K
mcf gas incl. casinghead
0
bbl oil, last 12 reported
—
vs the 12 before
4
wells completed on it
1.57K
peak month, bbl (May 1993)

PDQ LEASE REPORTS · FIRST JAN 1993 · LAST VOLUME JAN 2023 · 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 0 · prior 12 0

02004006002017201820192020202120222023202420252026

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

02K4K2017201820192020202120222023202420252026

Who reported it

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

  1. Maralo, Inc.Jan 1993 → Dec 1998 · 72 mo
  2. Maralo, LLCJan 1999 → Nov 2004 · 71 mo
  3. COG Operating LLCDec 2004 → Dec 2012 · 97 mo
  4. Legacy Reserves Operating LPJan 2013 → Feb 2023 · 122 mo
  5. Highmark Energy Operating, LLCMar 2023 → Jul 2026 · 41 mo

Wells on the lease

FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL

4

wells completed on the lease

Plugged
2
Producing
1
Shut IN
1

Newest permits

All 4 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-10-21679, documented in the API reference.