Petrora

LEASES · O-8-8231 · OIL · DISTRICT 7B

Hooks Ranch Unit

Reporting

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

Hooks Ranch Unit is an RRC oil lease (O-8-8231) in Callahan County operated by Grayrock Energy II, LLC, with 13 wells completed on it.

It has reported 101K barrels of oil and 42 mcf of gas since January 1993, last reporting volume in April 2026 (statewide data runs through April 2026).

The last 12 reported months total 958 barrels of oil, down 40% on the year before; the lease peaked at 942 barrels in December 2007.

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

101K
bbl oil, all reported
42
mcf gas incl. casinghead
958
bbl oil, last 12 reported
-40%
vs the 12 before
13
wells completed on it
942
peak month, bbl (Dec 2007)

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 958 · prior 12 1,589(-40%)

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 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. Tracker MineralJan 1993 → Jun 1996 · 42 mo
  2. Continual Oil & Gas, Inc.Jul 1996 → Feb 1998 · 20 mo
  3. BC Operating, Inc.Mar 1998 → Dec 1999 · 22 mo
  4. Crownquest Operating, LLCJan 2000 → Jul 2001 · 19 mo
  5. BC Operating, Inc.Aug 2001 → Oct 2004 · 39 mo
  6. Celero Energy, L.P.Nov 2004 → Sep 2005 · 11 mo
  7. Whiting Oil and Gas CorporationOct 2005 → May 2006 · 8 mo
  8. L.C.S. Production CompanyJun 2006 → Apr 2009 · 35 mo
  9. Plantation Operating, LLCMay 2009 → Nov 2011 · 31 mo
  10. Merit Energy CompanyDec 2011 → May 2017 · 66 mo
  11. Rover Petroleum Operating, LLCJun 2017 → Dec 2023 · 79 mo
  12. Grayrock Energy II, LLCJan 2024 → Jul 2026 · 31 mo

Wells on the lease

FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL

13

wells completed on the lease

Shut IN
6
Plugged
4
Producing
1
NO Type on File
1
Injection
1

Operates them now

Grayrock Energy II LLC
12
Grayrock Energy II, LLC
1

Newest permits

All 13 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-8-8231, documented in the API reference.