WELL · 42-003-38101 · DISTRICT 8
M.a.k.(spraberry)unit #4501
Andrews County · Spraberry (Trend Area) field · Vertical
M.A.K.(Spraberry)Unit #4501 (API 42-003-38101) is a well in Andrews County operated by Diamondback E&P LLC, completed March 1, 2021.
The RRC has issued 2 drilling permits between 1996 and 2019, permitted to 8,748 ft.
Completion filings report 6 formation tops, including San Andres, Clear Fork, Spraberry, U/Spraberry.
Its 4 leases have reported 1.53M barrels of oil and 905K mcf of gas since February 1997, last reporting in July 2026. The leases carry 42 wells, so these are lease totals, not this well alone.
Operator of record
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 Apr 2026 |
| Latest permit | Diamondback E&P LLCMay 29, 2019 |
- 8,748
- total depth, ft
- 2
- permits on file
- May 29, 2019
- last permit issued
- Mar 1, 2021
- completed
- 1.53M
- cumulative oil, bbl
- 905K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 1997 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 1, 2021
- Shut in
- —
- Plugged
- —
Surface location
32.451589, -102.211534
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Andrews County.
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 42 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| M.a.k.(spraberry)unit O-10-50198 | Spraberry (Trend Area) | Diamondback E&P LLC | 14 | 631K | 442K | Nov 2017 – Jul 2026 |
| M.a.k.(spraberry)unit SWD O-10-55627 | Spraberry (Trend Area) | Rattler Midstream Operating LLC | 2 | 0 | 0 | Apr 2021 – Jul 2026 |
| M.a.k.(spraberry)unit O-10-35243 | M.A.K. (Spraberry) | Diamondback E&P LLC | 25 | 897K | 462K | Feb 1997 – Sep 2020 |
| University 45 O-10-35255 | M.A.K. (Spraberry) | Coastal Management Corporation | 1 | 0 | 0 | Feb 1997 – Oct 1997 |
Oil, barrels lease total
Last 12 months 24,135 · prior 12 39,996(-40%)
Gas, mcf lease total
Last 12 months 47,431 · prior 12 45,572(+4%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Coastal Management CorporationFeb 1997 → Apr 2000
- 2Aroc (Texas) Inc.May 2000 → Nov 2007
- 3Southern Bay Operating, L.L.C.Dec 2007 → Jun 2013
- 4HK Energy Operating, LLCJul 2013 → Nov 2013
- 5Energyquest II, LLCDec 2013 → Oct 2018
- 6Diamondback E&P LLCNov 2018 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 853361-99 | Field transfer | Diamondback E&P LLC | May 21, 2019 | May 29, 2019 | Dec 8, 1996 | 8,748 |
| 455996-99 | Drill | Coastal Management Corporation | Dec 6, 1996 | Dec 6, 1996 | Dec 7, 1996 | 8,700 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-35243 | — | — | — | — |
| — | — O-10-35255 | — | — | — | — |
| — | — O-10-50198 | — | — | — | — |
| — | — O-10-55627 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,942 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| San Andres | 4,433 | -1,491 |
| San Andres | 4,490 | -1,548 |
| Clear Fork | 6,375 | -3,433 |
| Clear ForkCLEARFORK | 6,375 | -3,433 |
| Clear ForkCLEARFORK | 6,421 | -3,479 |
| Spraberry | 8,232 | -5,290 |
| U/Spraberry | 8,232 | -5,290 |
| SpraberryUPPER SPRABERRY | 8,282 | -5,340 |
| Gin Sand | 8,552 | -5,610 |
| L/Spraberry | 8,793 | -5,851 |
| Spraberry | 8,793 | -5,851 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,554 | 8,557 | Perforated |
| 8,554 | 8,654 | Perforated |
| 8,559 | 8,572 | Perforated |
| 8,578 | 8,588 | Perforated |
| 8,646 | 8,654 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,987 | 12.25 | 900 S |
| 5.5 | 8,724 | 7.875 | 2,345 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 26, 2021 | Mar 22, 2021 | — |
| 00 | Mar 25, 2021 | Mar 22, 2021 | — |
| 00 | Nov 18, 2019 | Jun 5, 2019 | — |
| 00 | Oct 5, 2016 | Aug 21, 2015 | — |
| 00 | Oct 3, 1997 | Aug 4, 1997 | — |
| 00 | Sep 26, 1997 | Feb 20, 1997 | Yes |
| 00 | Apr 8, 1997 | Feb 20, 1997 | Yes |
| 00 | Apr 7, 1997 | — | — |
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 42-003-38101 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-003-38101 → 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.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
UL BLK 6 Ddu A42-003-47996
0.7 KM · Diamondback E&P LLC · Section with this well →
| Yates | 2,500 | 461 |
| Seven Rivers | 3,257 | -296 |
| Queen | 3,688 | -727 |
| Grayburg | 4,095 | -1,134 |
| San Andres | 4,530 | -1,569 |
| Glorieta | 5,427 | -2,466 |
| Clear Fork | 6,440 | -3,479 |
| Tubb | — |
10 TOPS · FIRST 8
UL BLK 6 Ddu A42-003-47995
0.7 KM · Diamondback E&P LLC · Section with this well →
| Yates | 3,022 | -61 |
| Seven Rivers | 3,263 | -302 |
| Queen | 3,688 | -727 |
| Grayburg | 4,095 | -1,134 |
| San Andres | 4,535 | -1,574 |
| Glorieta | 5,417 | -2,456 |
| Clear Fork | 6,454 | -3,493 |
| Holt | — |
10 TOPS · FIRST 8
UL BLK 6 Ddu A42-003-47993
0.7 KM · Diamondback E&P LLC · Section with this well →
| Yates | 3,022 | -61 |
| Seven Rivers | 3,262 | -301 |
| Queen | 3,688 | -727 |
| Grayburg | 4,094 | -1,133 |
| San Andres | 4,533 | -1,572 |
| Glorieta | 5,417 | -2,456 |
| Clear Fork | 6,461 | -3,500 |
| Holt | — |
10 TOPS · FIRST 8
UL BLK 6 Ddu A42-003-47694
0.7 KM · Ajax Resources, LLC · Section with this well →
| Grayburg | 4,266 | -1,316 |
| San Andres | 4,782 | -1,832 |
| Clear Fork | 6,641 | -3,691 |
| Permian (undifferentiated) | — | |
| Yates | — | |
| Tubb | — | |
| Seven Rivers | — | |
| Queen | — |
10 TOPS · FIRST 8
UL BLK 6 Ddu A42-003-47695
0.7 KM · Ajax Resources, LLC · Section with this well →
| Grayburg | 4,266 | -1,316 |
| San Andres | 4,782 | -1,832 |
| Clear Fork | 6,448 | -3,498 |
| Yates | — | |
| Tubb | — | |
| Seven Rivers | — | |
| Queen | — | |
| Permian (undifferentiated) | — |
10 TOPS · FIRST 8
UL BLK 6 Ddu A42-003-47696
0.7 KM · Ajax Resources, LLC · Section with this well →
| Grayburg | 4,266 | -1,316 |
| San Andres | 4,782 | -1,832 |
| Clear Fork | 6,455 | -3,505 |
| Yates | — | |
| Tubb | — | |
| Seven Rivers | — | |
| Permian (undifferentiated) | — | |
| Holt | — |
10 TOPS · FIRST 8
UL BLK 6 Ddu A42-003-47697
0.7 KM · Ajax Resources, LLC · Section with this well →
| Grayburg | 4,266 | -1,316 |
| San Andres | 4,782 | -1,832 |
| Clear Fork | 6,450 | -3,500 |
| Yates | — | |
| Tubb | — | |
| Seven Rivers | — | |
| Queen | — | |
| Permian (undifferentiated) | — |
10 TOPS · FIRST 8
University M.A.K. 6-4442-317-32916
0.7 KM · Monsanto Oil Company · Section with this well →
| B/Santa Rosa | 1,700 | 1,219 |
| San Andres | 4,820 | -1,901 |
| Clear Fork | 6,380 | -3,461 |
| U/Spraberry | 8,238 | -5,319 |
| Spraberry | 8,238 | -5,319 |
| Spraberry | 8,238 | -5,319 |
| Spraberry | 8,240 | -5,321 |
| Gin Sand | 8,518 | -5,599 |
11 TOPS · FIRST 8
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 0
- bbl, last 12 reported months
- 0
- bbl, all reported
- Feb 2000
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000085736 | H-1 Injection | Not activated | 500 | 1,500 | 8,470–8,530 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 0 · prior 12 0
TexNet catalog via USGS
Seismicity near this well
- 21
- M2+ events within 10 km, last 2 years
- M3.6
- largest
A proximity count, not an attribution. How to read it →
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/00338101, documented in the API reference.