WELL · 42-317-10047 · DISTRICT 8
M.a.k.(spraberry)unit #4207
Martin County · Spraberry (Trend Area) field · Vertical
M.A.K.(Spraberry)Unit #4207 (API 42-317-10047) is a well in Martin County operated by Diamondback E&P LLC, completed September 29, 1963.
The RRC has issued one drilling permit, issued May 30, 2019, permitted to 8,965 ft.
Completion filings report one formation top, including Spraberry.
Its 4 leases have reported 1.55M barrels of oil and 930K mcf of gas since January 1993, last reporting in July 2026. The leases carry 41 wells, so these are lease totals, not this well alone.
Operator of record
Midland, TX · P-5 Y, filed Mar 4, 2026 · 5,231 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 30, 2019 |
- 8,965
- total depth, ft
- 1
- permits on file
- May 30, 2019
- last permit issued
- Sep 29, 1963
- completed
- 1.55M
- cumulative oil, bbl
- 930K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Sep 29, 1963
- Shut in
- —
- Plugged
- —
Surface location
32.463621, -102.192032
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Martin 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 41 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 |
| University 6-42 C O-10-55851 | Spraberry (Trend Area) | Diamondback E&P LLC | 1 | 14.8K | 10K | Jul 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 -A- O-10-18011 | M.A.K. (Spraberry) | Coastal Management Corporation | 1 | 6.6K | 15.5K | Jan 1993 – May 1997 |
Oil, barrels lease total
Last 12 months 25,626 · prior 12 41,778(-39%)
Gas, mcf lease total
Last 12 months 48,894 · prior 12 48,629(+1%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Knox Industries, Inc.Jan 1993 → Jun 1995
- 2Trinity Operating & Prod., Inc.Jul 1995 → Jul 1995
- 3Coastal Management CorporationAug 1995 → Apr 2000
- 4Aroc (Texas) Inc.May 2000 → Nov 2007
- 5Southern Bay Operating, L.L.C.Dec 2007 → Jun 2013
- 6HK Energy Operating, LLCJul 2013 → Nov 2013
- 7Energyquest II, LLCDec 2013 → Oct 2018
- 8Diamondback E&P LLCNov 2018 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 853351-99 | Field transfer | Diamondback E&P LLC | May 21, 2019 | May 30, 2019 | Sep 1, 1963 | 8,965 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-18011 | — | — | — | — |
| — | — O-10-35243 | — | — | — | — |
| — | — O-10-50198 | — | — | — | — |
| — | — O-10-55851 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,895 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,476 | 8,495 | Perforated |
| — | 8,476 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,985 | 12.25 | — |
| 8.625 | 1,985 | — | — |
| 2.375 | 8,490 | — | — |
| 4.5 | 8,965 | 7.875 | — |
| 4.5 | 8,965 | — | — |
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 | Nov 30, 2021 | Aug 25, 2021 | — |
| 00 | Jul 12, 2021 | Jun 7, 2019 | — |
| 00 | Nov 18, 2019 | Jun 7, 2019 | — |
| 00 | Apr 2, 1997 | Oct 16, 1963 | — |
| 00 | Jan 12, 1984 | Oct 16, 1963 | — |
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 42-317-10047 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-10047 → 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 Comanche A4144 Unit42-317-40492
0.6 KM · EXL Petroleum Operating Inc. · Section with this well →
| Spraberry | 8,198 | -5,278 |
| Dean | 9,433 | -6,513 |
| Wolfcamp | 9,606 | -6,686 |
| San Andres | — | |
| Strawn | — | |
| Mississippian | — | |
| Pennsylvanian | — | |
| Queen | — |
10 TOPS · FIRST 8
UL Comanche A4144 Unit42-317-41012
0.6 KM · EXL Petroleum Operating Inc. · Section with this well →
| Spraberry | 8,198 | -5,301 |
| Dean | 9,433 | -6,536 |
| Wolfcamp | 9,606 | -6,709 |
| Queen | — | |
| Yates | — | |
| Santa Rosa | — | |
| Cisco | — | |
| San Andres | — |
10 TOPS · FIRST 8
University Mak 6-4142-317-32480
0.6 KM · Monsanto Company · Section with this well →
| San Andres | 4,433 | -1,521 |
| Clear Fork | 6,375 | -3,463 |
| Spraberry | 8,232 | -5,320 |
| Spraberry | 8,793 | -5,881 |
| Dean | 9,480 | -6,568 |
| Wolfcamp | 9,735 | -6,823 |
UL Addie 41-27 C42-317-44793
0.7 KM · Diamondback E&P LLC · Section with this well →
| Yates | 2,971 | -55 |
| Queen | 3,650 | -734 |
| Grayburg | 4,083 | -1,167 |
| San Andres | 4,501 | -1,585 |
| Clear Fork | 6,397 | -3,481 |
| Spraberry | 8,242 | -5,326 |
| Dean | 9,471 | -6,555 |
| Wolfcamp | 9,672 | -6,756 |
11 TOPS · FIRST 8
UL Addie 41-27 B42-317-44622
0.7 KM · Diamondback E&P LLC · Section with this well →
| Yates | 2,977 | -61 |
| Queen | 3,653 | -737 |
| Grayburg | 4,082 | -1,166 |
| San Andres | 4,474 | -1,558 |
| Clear Fork | 6,392 | -3,476 |
| Spraberry | 8,241 | -5,325 |
| Santa Rosa | — | |
| Cisco | — |
13 TOPS · FIRST 8
UL Addie 41-27 A42-317-44621
0.7 KM · Diamondback E&P LLC · Section with this well →
| Yates | 3,004 | -88 |
| Queen | 3,657 | -741 |
| Grayburg | 4,101 | -1,185 |
| San Andres | 4,485 | -1,569 |
| Clear Fork | 6,396 | -3,480 |
| Spraberry | 8,244 | -5,328 |
| Santa Rosa | — | |
| Dean | — |
10 TOPS · FIRST 8
UL Keswick 41-27 F42-317-44795
0.7 KM · Diamondback E&P LLC · Section with this well →
| Yates | 2,978 | -62 |
| Queen | 3,648 | -732 |
| Grayburg | 4,083 | -1,167 |
| San Andres | 4,474 | -1,558 |
| Clear Fork | 6,409 | -3,493 |
| Spraberry | 8,262 | -5,346 |
| Dean | 9,511 | -6,595 |
| Wolfcamp | 9,589 | -6,673 |
10 TOPS · FIRST 8
UL Keswick 41-27 E42-317-44620
0.7 KM · Diamondback E&P LLC · Section with this well →
| Yates | 2,975 | -58 |
| Queen | 3,650 | -733 |
| Grayburg | 4,079 | -1,162 |
| San Andres | 4,529 | -1,612 |
| Clear Fork | 6,409 | -3,492 |
| Spraberry | 8,256 | -5,339 |
| Cisco | — | |
| Dean | — |
10 TOPS · FIRST 8
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/31710047, documented in the API reference.