WELL · 42-317-32391 · DISTRICT 8
M.a.k.(spraberry)unit #1
Martin County · M.A.K. (Spraberry) field · Vertical
M.A.K.(Spraberry)Unit #1 (API 42-317-32391) is a plugged well in Martin County, plugged February 18, 2008, last operated by Diamondback E&P LLC.
The RRC has issued 2 drilling permits between 1981 and 1982, permitted to 9,900 ft.
It was permitted by Monsanto Company and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Its 2 leases have reported 911K barrels of oil and 480K mcf of gas since January 1993, last reporting in September 2020. The leases carry 27 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Monsanto Company; the EWA schedule now lists a different operator.
Midland, TX · P-5 Y, filed Mar 4, 2026 · 5,237 permits on file · (855) 247-5920
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Diamondback E&P LLC |
| Production reports | Diamondback E&P LLCthrough Dec 2018 |
| Latest permit | Monsanto CompanyJun 23, 1982 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,900
- total depth, ft
- 2
- permits on file
- Jun 23, 1982
- last permit issued
- May 7, 1982
- completed
- 911K
- cumulative oil, bbl
- 480K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Sep 2020
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- May 7, 1982
- Shut in
- —
- Plugged
- Feb 18, 2008
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 27 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| M.a.k.(spraberry)unit O-10-35243 | M.A.K. (Spraberry) | Diamondback E&P LLC | 25 | 897K | 462K | Feb 1997 – Sep 2020 |
| Univ. Mak -644- O-10-27380 | M.A.K. (Spraberry) | Coastal Management Corporation | 2 | 14.7K | 18K | Jan 1993 – Mar 2008 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Bledsoe Partners, Inc.Jan 1993 → Feb 1995
- 2Synergex, Inc.Mar 1995 → Dec 1995
- 3Mineral Technologies, Inc.Jan 1996 → Jan 1996
- 4Coastal Management CorporationFeb 1996 → Apr 2000
- 5Aroc (Texas) Inc.May 2000 → Nov 2007
- 6Southern Bay Operating, L.L.C.Dec 2007 → Jun 2013
- 7HK Energy Operating, LLCJul 2013 → Nov 2013
- 8Energyquest II, LLCDec 2013 → Oct 2018
- 9Diamondback E&P LLCNov 2018 → Dec 2018
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 164441-99 | Recompletion | Monsanto Company | Jun 23, 1982 | Jun 23, 1982 | — | 9,900 |
| 128535-99 | Drill | Monsanto Company | Aug 4, 1981 | Aug 4, 1981 | Nov 17, 1981 | 9,900 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-27380 | — | — | — | — |
| — | — O-10-35243 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,233 | 9,022 | Perforated |
| 9,702 | 9,876 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 370 | 17.5 | 400 S |
| 8.625 | 4,604 | 12.25 | 750 S |
| 2.875 | 8,293 | — | — |
| 2.875 | 9,910 | — | — |
| 5.5 | 9,957 | 7.875 | 875 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 | Apr 2, 1997 | Jun 3, 1982 | — |
| 00 | Jan 12, 1984 | Jun 3, 1982 | — |
| 00 | Jan 12, 1984 | Apr 14, 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 42-317-32391 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-32391 → 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.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 0
- bbl, last 12 reported months
- 0
- bbl, all reported
- —
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000085691 | H-1 Injection | Plugged Feb 28, 2008 | 500 | 1,500 | 8,233–8,620 |
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/31732391, documented in the API reference.