TEXAS · WELLS · TERRY COUNTY · API 42-445-31157 · DISTRICT 7B
Muldrow Unit #4
Terry County · Prentice NW. (San Andres) field · Injection · Vertical
Muldrow Unit #4 (API 42-445-31157) is a well in Terry County operated by Ctoc Energy LLC, completed December 21, 2010 and listed as injection on the RRC schedule.
The RRC has issued one drilling permit, issued September 29, 1983, permitted to 5,320 ft.
It was permitted by Adobe Oil & Gas Corp. and has since transferred to Ctoc Energy LLC on the wellbore schedule.
Completion filings report one formation top, including San Andres.
Its 2 leases have reported 1.18M barrels of oil and 352K mcf of gas since January 1993, last reporting in July 2026. The leases carry 33 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 127K barrels injected in the 12 months reported through November 2025.
Operator of record
Permitted by Adobe Oil & Gas Corp.; the EWA schedule now lists a different operator.
- Based in
- Fort Worth, TX
- P-5 status
- Active (A)
- P-5 last filed
- Apr 24, 2026
- Phone
- (817) 334-7804
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Merit Energy Company |
| Production reports | Cross Timbers Energy, LLCthrough Apr 2026 |
| Latest permit | Adobe Oil & Gas Corp.Sep 29, 1983 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,320
- total depth, ft
- 1
- permits on file
- Sep 29, 1983
- last permit issued
- Dec 21, 2010
- completed
- 1.18M
- cumulative oil, bbl
- 352K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Dec 21, 2010
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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 2 leases this well is completed on; they carry 33 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Muldrow Unit O-11-68725 | Prentice, NW. (San Andres) | Cross Timbers Energy, LLC | 28 | 1.13M | 261K | Dec 2004 – Jul 2026 |
| Clare "B" O-11-64457 | Prentice, NW. (San Andres) | Merit Energy Company | 5 | 45.4K | 90.3K | Jan 1993 – Mar 2005 |
Oil, barrels lease total
Last 12 months 32,539 · prior 12 34,701(-6%)
Gas, mcf lease total
Last 12 months 6,091 · prior 12 8,726(-30%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Santa FE Energy Resources, Inc.Jan 1993 → Oct 1999
- 2Santa FE Snyder CorporationNov 1999 → Oct 2000
- 3Devon SFS Operating, Inc.Nov 2000 → Jun 2002
- 4Merit Energy CompanyJul 2002 → Dec 2013
- 5Cross Timbers Energy, LLCJan 2014 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 215608-99 | Drill | Adobe Oil & Gas Corp. | Aug 31, 1983 | Sep 29, 1983 | — | 5,335 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Dec 21, 2010 | Muldrow Unit O-11-68725 | Prentice NW. (San Andres) | Ctoc Energy LLC | Injection | 5,320 |
| Nov 5, 1983 | Clare B O-11-64457 | Prentice NW. (San Andres) | Merit Energy Company | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,514 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| San Andres | 4,598 | -1,084 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,269 | 5,302 | Perforated |
| 5,270 | 5,302 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 475 | 12.25 | 350 S |
| 2.375 | 5,296 | — | — |
| 5.5 | 5,320 | 7.875 | 310 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 →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Oct 1, 2021 | Sep 30, 2021 | — |
| 00 | Aug 1, 2006 | Mar 13, 2006 | — |
| 00 | Dec 20, 2004 | Nov 21, 1983 | — |
| 00 | Jan 12, 1984 | Nov 21, 1983 | — |
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.
- Wellbore filings for 42-445-31157 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-445-31157 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 127K
- bbl, last 12 reported months
- 1.73M
- bbl, all reported
- Nov 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000094915 | H-1 Injection | Active | 550 | 2,600 | 5,200–5,320 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 126,530 · prior 12 93,870(+35%)
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/44531157, documented in the API reference.