WELL · 42-345-30249 · DISTRICT 8
Mullin W. W. #4
Motley County · Wolf Flat (Cisco) field · Injection · Vertical
Mullin W. W. #4 (API 42-345-30249) is a well in Motley County operated by Dry Fork Production CO. LLC, completed October 24, 1988 and listed as injection on the RRC schedule.
The RRC has issued one drilling permit, issued June 14, 1988, permitted to 6,000 ft.
It was permitted by Chevron U. S. A. Inc. and has since transferred to Dry Fork Production CO. LLC on the wellbore schedule.
Completion filings report 12 formation tops, including San Andres, Glorieta, Clear Fork, Tubb.
Its lease has reported 469K barrels of oil and 37.1K mcf of gas since January 1993, last reporting in July 2026. The lease carries 7 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 292K barrels injected in the 12 months reported through April 2025.
Operator of record
Permitted by Chevron U. S. A. Inc.; the EWA schedule now lists a different operator.
Wichita Falls, TX · P-5 X, filed May 1, 2026 · 207 permits on file · (940) 723-7052
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Dry Fork Production Co. LLC |
| Production reports | Dry Fork Production Co., LLCthrough Jul 2025 |
| Latest permit | Chevron U. S. A. Inc.Jun 14, 1988 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,000
- total depth, ft
- 1
- permits on file
- Jun 14, 1988
- last permit issued
- Oct 24, 1988
- completed
- 469K
- cumulative oil, bbl
- 37.1K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 24, 1988
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
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 7 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Mullin, W. W. O-11-66077 | Wolf Flat (Cisco) | Dry Fork Production Co., LLC | 7 | 469K | 37.1K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 170 · prior 12 1,792(-91%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Pennzoil Petroleum CompanyJan 1993 → Jan 1995
- 2Pennzoil Exploration & Prod. Co.Feb 1995 → Mar 1995
- 3Maynard Oil Co.Apr 1995 → Sep 1996
- 4Ambrit Energy Corp.Oct 1996 → May 1999
- 5Castle Exploration Company, IncJun 1999 → May 2002
- 6Delta Exploration Company, Inc.Jun 2002 → Feb 2003
- 7Texoma Oil Tools, Inc.Mar 2003 → Jul 2014
- 8Dry Fork Production Co., LLCApr 2020 → Jul 2025
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 347698-99 | Drill | Chevron U. S. A. Inc. | Jun 13, 1988 | Jun 14, 1988 | — | 6,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-11-66077 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,311 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| San Andres | 790 | 1,521 |
| Glorieta | 1,560 | 751 |
| Clear ForkUPPER CLEARFORK | 1,620 | 691 |
| Tubb | 2,270 | 41 |
| Red Cave | 2,815 | -504 |
| Abo Shale | 2,980 | -669 |
| Valera | 3,380 | -1,069 |
| Wolfcamp | 3,550 | -1,239 |
| Coleman JunctionBASE COLEMAN JUNCTION | 4,000 | -1,689 |
| Bursam Lime | 4,300 | -1,989 |
| PennsylvanianPENN SHALE | 4,990 | -2,679 |
| CiscoLOWER CISCO | 5,365 | -3,054 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,794 | 4,869 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 869 | 12.25 | 525 S |
| 5.5 | 5,800 | 8.75 | 250 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 | Nov 9, 1988 | Oct 28, 1988 | — |
| 00 | Nov 4, 1988 | — | — |
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 42-345-30249 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-345-30249 → 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
- 292K
- bbl, last 12 reported months
- 25.7M
- bbl, all reported
- Apr 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000067374 | W-14 Disposal | Active | 5,000 | 1,200 | 4,794–4,869 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 292,000 · prior 12 365,000(-20%)
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/34530249, documented in the API reference.