TEXAS · WELLS · MARTIN COUNTY · JEFFCOAT LEASE · API 42-317-32057 · DISTRICT 7B
Jeffcoat #A123
Martin County · Ackerly (Dean Sand) field · Vertical
Jeffcoat #A123 (API 42-317-32057) is a plugged well in Martin County, plugged February 17, 2009, last operated by Diamondback E&P LLC.
The RRC has issued one drilling permit, issued December 29, 1978, permitted to 8,780 ft.
It was permitted by Maguire Oil Company and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Its lease has reported 76K barrels of oil and 361K mcf of gas since January 1993, last reporting in July 2026. The lease carries 4 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Maguire Oil Company; the EWA schedule now lists a different operator.
- Based in
- Midland, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- May 4, 2026
- Permits on file
- 5,237
- Phone
- (432) 221-7400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Diamondback E&P LLC |
| Production reports | Diamondback E&P LLCthrough Dec 2025 |
| Latest permit | Maguire Oil CompanyDec 29, 1978 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,780
- total depth, ft
- 1
- permits on file
- Dec 29, 1978
- last permit issued
- Mar 2, 1979
- completed
- 76K
- cumulative oil, bbl
- 361K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 2, 1979
- Shut in
- —
- Plugged
- Feb 17, 2009
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 4 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Jeffcoat O-11-60276 | Ackerly (Dean Sand) | Diamondback E&P LLC | 4 | 76K | 361K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 149 · prior 12 434(-66%)
Gas, mcf lease total
Last 12 months 210 · prior 12 481(-56%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Maguire Oil CompanyJan 1993 → Sep 2004
- 2Enervest Operating, L.L.C.Oct 2004 → Dec 2005
- 3Energen Resources CorporationJan 2006 → Jan 2019
- 4Diamondback E&P LLCFeb 2019 → Dec 2025
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 39808-99 | Drill | Maguire Oil Company | Dec 29, 1978 | Dec 29, 1978 | — | 8,780 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Mar 2, 1979 | Jeffcoat O-11-60276 | Ackerly (Dean Sand) | Diamondback E&P LLC | Plugged | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,460 | 8,657 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 12.75 | 313 | 17.5 | 350 S |
| 8.625 | 3,654 | 11 | 250 S |
| 4.5 | 8,780 | 7.875 | 1,490 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 | Jan 12, 1984 | Apr 9, 1979 | — |
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 42-317-32057 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-32057 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. 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/31732057, documented in the API reference.