WELL · 42-433-31004 · DISTRICT 7

Annis #10

Y

Stonewall County · Flowers (Canyon Sand) field · Water Supply  · Vertical

Annis #10 (API 42-433-31004) is a well in Stonewall County operated by Grayrock Energy II LLC, completed June 2, 2015 and listed as water supply on the RRC schedule.

The RRC has issued one drilling permit, issued December 31, 1979, permitted to 4,700 ft.

It was permitted by Martin Oil CO. and has since transferred to Grayrock Energy II LLC on the wellbore schedule.

Completion filings report 4 formation tops, including T/Coleman Jct Lime, Cisco, Gunsight, Canyon.

Its lease has reported 92.8K barrels of oil and 7.76K mcf of gas since January 1993, last reporting in July 2026. The lease carries 11 wells, so these are lease totals, not this well alone.

Operator of record

Grayrock Energy II LLC

Permitted by Martin Oil Co.; the EWA schedule now lists a different operator.

Fort Worth, TX · P-5 Y, filed Aug 4, 2025 · (214) 234-9115

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleGrayrock Energy II LLC
Production reportsGrayrock Energy II, LLCthrough Apr 2026
Latest permitMartin Oil Co.Dec 31, 1979

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

4,700
total depth, ft
1
permits on file
Dec 31, 1979
last permit issued
Jun 2, 2015
completed
92.8K
cumulative oil, bbl
7.76K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jun 2, 2015
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active

Surface location

No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH APR 2026

Texas reports oil by lease, not by well. These are the lease this well is completed on; they carry 11 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Annis O-8-4268Flowers (Canyon Sand)Grayrock Energy II, LLC1192.8K7.76KJan 1993 – Jul 2026

Oil, barrels lease total

Last 12 months 1,099 · prior 12 1,323(-17%)

0100200202420252026

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1Martin Oil Co.Jan 1993 → Dec 1997
  2. 2Walter Exploration Inc.Jan 1998 → Sep 2001
  3. 3Walter Exploration CompanyOct 2001 → Oct 2010
  4. 4Plantation Operating, LLCNov 2010 → Nov 2011
  5. 5Merit Energy CompanyDec 2011 → May 2017
  6. 6Rover Petroleum Operating, LLCJun 2017 → Dec 2023
  7. 7Grayrock Energy II, LLCJan 2024 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
68397-99DrillMartin Oil Co.Dec 31, 1979Dec 31, 1979Apr 7, 19804,700

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-8-4268————

Formation tops

As filed on W-2/G-1. Subsea from 1,816 ft elevation.Download CSV →

FormationMD ftSubsea
T/Coleman JCT Lime2,430-614
CiscoBASE CISCO3,465-1,649
Gunsight3,615-1,799
Canyon4,100-2,284

Perforations

Perforated and open-hole intervals.

FromToType
3,1343,808Perforated
4,2704,280Perforated
4,2944,298Perforated
4,3144,318Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62521412.25200 S
2.3754,400——
5.54,6467.875600 S

Completion filings

W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. About these reports →

SuffixFiledW-2 / G-1 dateLogs referenced
00Jun 30, 2015Jun 18, 2015—
00May 6, 2003Feb 3, 2003—
00Jan 12, 1984Sep 3, 1981—

The source documents

Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.

Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.

About this data

Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.

New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease

Developers: this page as JSON is GET /v1/data/wells/43331004, documented in the API reference.