WELL · 42-097-02544 · DISTRICT 9

D. A. Cox #8

D. A. Cox #8 (API 42-097-02544) is a former disposal or injection well in Cooke County, last operated by Cimarex Energy CO. Of Colorado; its UIC permit is no longer active.

The RRC has issued 3 drilling permits between 1982 and 2010, permitted to 4,906 ft.

Completion filings report 7 formation tops, including 1450, Cox, Bruhlmeyer, Consolidated.

Its 4 leases have reported 6.92M barrels of oil and 1.43M mcf of gas since January 1993, last reporting in July 2026. The leases carry 378 wells, so these are lease totals, not this well alone.

Operator of record

Cimarex Energy Co. of Colorado

Midland, TX · P-5 Y, filed Feb 4, 2026 · 476 permits on file · (800) 969-4789

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	none
Production reports	Sydri Operating, LLCthrough Apr 2026
Latest permit	Cimarex Energy Co. of ColoradoAug 31, 2010

4,906: total depth, ft
3: permits on file
Aug 31, 2010: last permit issued
—: completed
6.92M: cumulative oil, bbl
1.43M: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule: OFF SCHEDULE
Completed: —
Shut in: —
Plugged: —

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 4 leases this well is completed on; they carry 378 wells in total, so volumes are shared.Why →

Lease	Field	Reporting operator	Wells	Oil, bbl	Gas, mcf	Reported
Cox, D. A. O-13-2483	Walnut Bend (Bruhlmeyer)	Sydri Operating, LLC	7	232K	48.9K	Jan 1993 – Jul 2026
Walnut Bend Field Unit O-13-27427	Walnut Bend (Consolidated)	Sydri Operating, LLC	370	6.69M	1.38M	Jan 1993 – Jul 2026
Cox, D.A. O-13-28579	Walnut Bend (1450)	Cimarex Energy Co. of Colorado	1	0	0	May 1993 – Dec 2010
— O-13-13264	—	—	0	0	0	—

Oil, barrels lease total

Last 12 months 77,994 · prior 12 93,654(-17%)

Gas, mcf lease total

Last 12 months 21,434 · prior 12 22,769(-6%)

Chain of custody

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

1Arco Oil & Gas Co.Jan 1993 → Feb 1994
2Vastar Resources, Inc.Mar 1994 → May 1999
3Gruy Petroleum Management Co.Jun 1999 → Apr 2006
4Cimarex Energy Co. of ColoradoMay 2006 → Dec 2012
5Merit Energy CompanyJan 2013 → Nov 2020
6Team Operating, L.L.C.Dec 2020 → Jun 2021
7Sydri Operating, LLCJul 2021 → Apr 2026

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
701384-99	Recompletion	Cimarex Energy Co. of Colorado	Aug 27, 2010	Aug 31, 2010	Aug 11, 2010	4,906
411430-99	Recompletion	Arco Oil & Gas Co.	May 6, 1993	May 10, 1993	May 19, 1993	4,700
178069-99	Recompletion	Arco Oil & Gas Co.	Nov 23, 1982	Nov 23, 1982	—	4,906

Completions

Completed	Lease	Field	Operator	Status	Depth
—	— O-13-2483	—	—	—	—
—	— O-13-13264	—	—	—	—
—	— O-13-27427	—	—	—	—
—	— O-13-28579	—	—	—	—

Formation tops

As filed on W-2/G-1. Subsea from 788 ft elevation.Download CSV →

Formation	MD ft	Subsea
1450	1,390	-602
Cox	2,950	-2,162
Bruhlmeyer	3,508	-2,720
Consolidated	3,891	-3,103
Hudspeth B	4,021	-3,233
Hudspeth F	4,514	-3,726
Main Snuggs	4,738	-3,950

Perforations

Perforated and open-hole intervals.

From	To	Type
1,393	1,400	Perforated
3,575	3,579	Perforated
3,700	3,704	Perforated
4,793	4,800	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
13	40	—	100 S
13	46	—	100 S
8.625	1,125	—	400 S
8.625	1,131	12.25	400 S
8.625	1,131	—	400 S
2.375	4,780	—	—
5.5	4,891	—	600 S
5.5	4,895	7.875	600 S
5.5	4,895	—	600 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 →

Filed	W-2 / G-1 date	Logs referenced
Jan 15, 2020	Dec 3, 2019	—
Dec 21, 2010	Sep 28, 2010	Yes
Dec 16, 2010	Jun 9, 1993	Yes
Jul 14, 1993	Jun 9, 1993	Yes
Jun 21, 1993	Nov 1, 1982	—
Nov 12, 1991	Nov 1, 1982	—
Jan 12, 1984	Nov 1, 1982	—

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 42-097-02544 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-097-02544 → 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
1.17M: bbl, all reported
Oct 1994: reported through

UIC	Kind	Status	Permitted bbl/d	Max psi	Zone ft
000044883	H-1 Injection	Canceled Feb 17, 1995	1,200	1,600	4,738–0

MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS

Last 12 months 0 · prior 12 116,161(-100%)

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/09702544, documented in the API reference.