WELL · 42-097-01010 · DISTRICT 9
Cox D. A. #43
Cooke County · Walnut Bend (Bruhlmeyer) field · Vertical
Cox D. A. #43 (API 42-097-01010) is a former disposal or injection well in Cooke County, last operated by Sydri Operating LLC; its UIC permit is no longer active.
The RRC has issued one drilling permit, issued August 27, 2008, permitted to 5,050 ft.
It was permitted by Cimarex Energy CO. Of Colorado and has since transferred to Sydri Operating LLC on the wellbore schedule.
Completion filings report 6 formation tops, including Cox, Bruhlmeyer, Consolidated, Winger.
Its 2 leases have reported 6.69M barrels of oil and 1.38M mcf of gas since January 1993, last reporting in July 2026. The leases carry 380 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Cimarex Energy Co. of Colorado; the EWA schedule now lists a different operator.
- Based in
- Dallas, TX
- P-5 status
- Active (A)
- P-5 last filed
- Mar 11, 2026
- Permits on file
- 46
- Phone
- (214) 373-8626
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Sydri Operating LLC |
| Production reports | Sydri Operating, LLCthrough Apr 2026 |
| Latest permit | Cimarex Energy Co. of ColoradoAug 27, 2008 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,050
- total depth, ft
- 1
- permits on file
- Aug 27, 2008
- last permit issued
- —
- completed
- 6.69M
- cumulative oil, bbl
- 1.38M
- 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 2 leases this well is completed on; they carry 380 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Cox, D. A. O-13-2487 | Walnut Bend (Cox) | Sydri Operating, LLC | 10 | 5.07K | 3.1K | 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 |
Oil, barrels lease total
Last 12 months 75,879 · prior 12 91,339(-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 |
|---|---|---|---|---|---|---|
| 668575-99 | Recompletion | Cimarex Energy Co. of Colorado | Aug 7, 2008 | Aug 27, 2008 | Feb 21, 2008 | 5,050 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-13-2487 | — | — | — | — |
| — | — O-13-27427 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 778 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Cox | 2,990 | -2,212 |
| Bruhlmeyer | 3,514 | -2,736 |
| Consolidated | 3,847 | -3,069 |
| Winger | 5,401 | -4,623 |
| Simpson | 5,485 | -4,707 |
| Oil Creek | 5,494 | -4,716 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,177 | 2,179 | Perforated |
| 3,346 | 3,351 | Perforated |
| 4,812 | 4,816 | Perforated |
| 4,824 | 4,832 | Perforated |
| — | 3,450 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,166 | — | 350 S |
| 5.5 | 5,049 | — | 450 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 | Dec 10, 2008 | Oct 30, 2008 | Yes |
| 00 | Nov 25, 2008 | — | — |
| 00 | Nov 21, 1994 | Nov 2, 1994 | — |
| 00 | Nov 10, 1994 | — | — |
| 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 42-097-01010 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-097-01010 → 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
- Oct 1994
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000071798 | H-1 Injection | Canceled Sep 8, 2008 | 1,000 | 2,000 | 4,812–4,834 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 0 · prior 12 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/09701010, documented in the API reference.