TEXAS · WELLS · MIDLAND COUNTY · API 42-329-00813 · DISTRICT 7B
Back Claud #4
Midland County · Parks (Consolidated) field · Vertical
Back Claud #4 (API 42-329-00813) is a plugged well in Midland County, plugged July 24, 2026, last operated by Cog Operating LLC.
The RRC has issued 2 drilling permits between 1985 and 1994, permitted to 10,649 ft.
It was permitted by Mobil Producing TX. & N.M. Inc. and has since transferred to Cog Operating LLC on the wellbore schedule.
Its 3 leases have reported 239K barrels of oil and 559K mcf of gas since January 1993, last reporting in July 2026. The leases carry 6 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Mobil Producing TX. & N.M. Inc.; the EWA schedule now lists a different operator.
- Based in
- Midland, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Jun 2, 2026
- Permits on file
- 4,568
- Phone
- (432) 683-7443
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | COG Operating LLC |
| Production reports | COG Operating LLCthrough Jul 2024 |
| Latest permit | Mobil Producing TX. & N.M. Inc.Aug 16, 1994 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,649
- total depth, ft
- 2
- permits on file
- Aug 16, 1994
- last permit issued
- Oct 28, 1994
- completed
- 239K
- cumulative oil, bbl
- 559K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Oct 28, 1994
- Shut in
- —
- Plugged
- Jul 24, 2026
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 3 leases this well is completed on; they carry 6 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Back, Claud O-10-39575 | Parks (Consolidated) | COG Operating LLC | 4 | 197K | 505K | Apr 2009 – Jul 2026 |
| Back, Claud O-10-34347 | Parks (Spraberry) | COG Operating LLC | 1 | 42.3K | 53.6K | Dec 1994 – Feb 2010 |
| Back, Claud O-10-30891 | Bryant -G- (Strawn) | Mobil Producing TX. & N.M. Inc. | 1 | 0 | 0 | Jan 1993 – Mar 2008 |
Oil, barrels lease total
Last 12 months 0 · prior 12 121(-100%)
Gas, mcf lease total
Last 12 months 0 · prior 12 395(-100%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Mobil Producing TX. & N.M. Inc.Dec 1994 → Mar 1998
- 2Henry Petroleum Corp.Apr 1998 → Mar 2001
- 3Henry Petroleum LPApr 2001 → Dec 2008
- 4COG Operating LLCJan 2009 → Jul 2024
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 425791-99 | Recompletion | Mobil Producing TX. & N.M. Inc. | Jul 12, 1994 | Aug 16, 1994 | Oct 8, 1994 | 10,120 |
| 286177-99 | Recompletion | Mobil Producing TX. & N.M. Inc. | Sep 12, 1985 | Sep 30, 1985 | — | 10,649 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Oct 28, 1994 | Back Claud O-10-39575 | Parks (Consolidated) | COG Operating LLC | Plugged | — |
| Oct 28, 1994 | Back Claud O-10-34347 | Parks (Spraberry) | COG Operating LLC | Plugged | — |
| Oct 3, 1986 | Back Claud O-10-30891 | Bryant -G- (Strawn) | Mobil Producing TX. & N.M. Inc. | Plugged | — |
| Nov 12, 1985 | Parks Field Unit O-10-4655 | Parks (Pennsylvanian) | COG Operating LLC | Plugged | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,806 | 8,708 | Perforated |
| 10,214 | 10,411 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 374 | — | — |
| 7.625 | 4,647 | — | — |
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 3, 2009 | Dec 12, 1994 | Yes |
| 00 | Jan 31, 1995 | Dec 12, 1994 | Yes |
| 00 | Jan 3, 1995 | Aug 7, 1989 | — |
| 00 | Sep 14, 1989 | Aug 7, 1989 | — |
| 00 | Oct 28, 1986 | Oct 10, 1986 | Yes |
| 00 | Oct 21, 1986 | — | — |
| 00 | Jan 21, 1986 | Dec 31, 1985 | — |
| 00 | Jan 12, 1984 | — | — |
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 42-329-00813 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-329-00813 → 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
- 0
- bbl, last 12 reported months
- 0
- bbl, all reported
- Jun 1989
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000041523 | H-1 Injection | Canceled Apr 20, 1990 | 0 | 0 | 0–0 |
MONTHLY INJECTED, BBL · H-10 · LAST 2 REPORTED MONTHS
Last 12 months 0
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/32900813, documented in the API reference.