WELL · 42-173-31989 · DISTRICT 8
Cooper #3601
Glasscock County · Cobra (Wolfcamp) field · Vertical
Cooper #3601 (API 42-173-31989) is a well in Glasscock County operated by Mdc Operating Inc., completed August 24, 1987.
The RRC has issued one drilling permit, issued July 7, 1987, permitted to 8,200 ft.
It was permitted by Matador Drilling Corp. and has since transferred to Mdc Operating Inc. on the wellbore schedule.
Completion filings report 6 formation tops, including Rustler, Yates, Grayburg, Spraberry.
Its 2 leases have reported 466K barrels of oil and 1.34M mcf of gas since January 1993, last reporting in July 2026. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Matador Drilling Corp.; the EWA schedule now lists a different operator.
Midland, TX · P-5 Y, filed Dec 2, 2022 · 7 permits on file · (432) 620-0909
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | MDC Operating Inc. |
| Production reports | Diamondback E&P LLCthrough Apr 2026 |
| Latest permit | Matador Drilling Corp.Jul 7, 1987 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,200
- total depth, ft
- 1
- permits on file
- Jul 7, 1987
- last permit issued
- Aug 24, 1987
- completed
- 466K
- cumulative oil, bbl
- 1.34M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Aug 24, 1987
- 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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Cooper O-10-52606 | Spraberry (Trend Area) | Diamondback E&P LLC | 1 | 33.9K | 114K | Sep 2019 – Jul 2026 |
| Cooper O-10-31368 | Cobra (Wolfcamp) | MDC Operating, Inc. | 1 | 432K | 1.23M | Jan 1993 – Oct 2022 |
Oil, barrels lease total
Last 12 months 3,778 · prior 12 761(+396%)
Gas, mcf lease total
Last 12 months 22,315 · prior 12 3,585(+522%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Matador Drilling Corp.Jan 1993 → Mar 1995
- 2MDC Operating, Inc.Apr 1995 → Jun 2022
- 3Hannathon Petroleum, LLCJul 2022 → Apr 2024
- 4DE IV Operating, LLCMay 2024 → Feb 2025
- 5Diamondback E&P LLCJun 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 332578-99 | Drill | Matador Drilling Corp. | Jul 7, 1987 | Jul 7, 1987 | — | 8,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-31368 | — | — | — | — |
| — | — O-10-52606 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,547 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,010 | 8,025 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 328 | 17.5 | 350 S |
| 9.625 | 3,423 | 12.25 | 1,775 S |
| 5.5 | 8,175 | 7.875 | 175 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, 2019 | Sep 1, 1987 | Yes |
| 00 | Sep 11, 1987 | Sep 1, 1987 | Yes |
| 00 | Sep 9, 1987 | — | — |
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 42-173-31989 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-173-31989 → 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.
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/17331989, documented in the API reference.