WELL · 42-317-46898 · DISTRICT 10
Greystoke 1-5 B #1JM
Martin County · Spraberry (Trend Area) field · Shut IN · Horizontal
Greystoke 1-5 B #1JM (API 42-317-46898) is a horizontal well in Martin County operated by Diamondback E&P LLC, completed September 25, 2025 and listed as shut in on the RRC schedule.
The RRC has issued one drilling permit, issued July 10, 2025, permitted to 9,563 ft.
Completion filings report 10 formation tops, including Santa Rosa, Yates, Queen, Grayburg.
Its lease has reported 108K barrels of oil and 104K mcf of gas since September 2025, last reporting in July 2026.
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 LLCJul 10, 2025 |
- 9,563
- total depth, ft
- 1
- permits on file
- Jul 10, 2025
- last permit issued
- Sep 25, 2025
- completed
- 108K
- cumulative oil, bbl
- 104K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2025 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 25, 2025
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
32.236745, -102.031372
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 lease this well is completed on; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Greystoke 1-5 B O-10-64846 | Spraberry (Trend Area) | Diamondback E&P LLC | 1 | 108K | 104K | Sep 2025 – Jul 2026 |
Oil, barrels lease total
Last 12 months 108,090 · prior 12 0
Gas, mcf lease total
Last 12 months 103,907 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Diamondback E&P LLCFeb 2026 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 909082-99 | Drill | Diamondback E&P LLC | Jul 8, 2025 | Jul 10, 2025 | Aug 5, 2025 | 9,563 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-64846 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,785 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa Rosa | 1,855 | 930 |
| Yates | 2,727 | 58 |
| Queen | 3,587 | -802 |
| Grayburg | 4,192 | -1,407 |
| San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H | 4,551 | -1,766 |
| Clear ForkCLEARFORK | 6,509 | -3,724 |
| Clear ForkCLEARFORK | 6,517 | -3,732 |
| Spraberry | 7,781 | -4,996 |
| Jo Mill | 8,275 | -5,490 |
| Dean | — | — |
| Queen | — | — |
| Santa Rosa | — | — |
| Wolfcamp | — | — |
| Yates | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,347 | 22,250 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 11.75 | 1,963 | 14.75 | 977 S |
| 8.625 | 6,322 | 9.875 | 610 S |
| 5.5 | 22,299 | 7.875 | 2,375 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 | Jul 24, 2026 | May 28, 2026 | — |
| 00 | Apr 28, 2026 | Feb 18, 2026 | Yes |
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 42-317-46898 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-46898 → 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.
Greystoke 1-5 A42-317-46894
0.0 KM · Diamondback E&P LLC · Section with this well →
| Santa Rosa | 1,856 | 929 |
| Yates | 2,728 | 57 |
| Queen | 3,603 | -818 |
| Grayburg | 4,205 | -1,420 |
| San Andres | 4,564 | -1,779 |
| Clear Fork | 6,522 | -3,737 |
| Spraberry | 7,788 | -5,003 |
| Jo Mill | 8,283 | -5,498 |
10 TOPS · FIRST 8
Greystoke 1-5 B42-317-46899
0.0 KM · Diamondback E&P LLC · Section with this well →
| Santa Rosa | 1,842 | 943 |
| Yates | 2,715 | 70 |
| Queen | 3,577 | -792 |
| Grayburg | 4,182 | -1,397 |
| San Andres | 4,541 | -1,756 |
| Clear Fork | 6,509 | -3,724 |
| Spraberry | 7,771 | -4,986 |
| Jo Mill | 8,280 | -5,495 |
10 TOPS · FIRST 8
Greystoke 1-5 F42-317-46896
0.0 KM · Diamondback E&P LLC · Section with this well →
| Santa Rosa | 1,214 | 1,571 |
| Yates | 2,712 | 73 |
| Queen | 3,587 | -802 |
| Grayburg | 3,587 | -802 |
| San Andres | 4,602 | -1,817 |
| Spraberry | 7,771 | -4,986 |
| Dean | 9,090 | -6,305 |
| Wolfcamp | 9,323 | -6,538 |
10 TOPS · FIRST 8
Greystoke 1-5 A42-317-46895
0.0 KM · Diamondback E&P LLC · Section with this well →
| Santa Rosa | 1,862 | 924 |
| Yates | 2,729 | 57 |
| Queen | 3,594 | -808 |
| Grayburg | 4,199 | -1,413 |
| San Andres | 4,557 | -1,771 |
| Clear Fork | 6,518 | -3,732 |
| Spraberry | 7,776 | -4,990 |
| Cisco | — |
10 TOPS · FIRST 8
Greystoke 1-5 G42-317-46905
0.0 KM · Diamondback E&P LLC · Section with this well →
| Santa Rosa | 1,833 | 952 |
| Yates | 2,712 | 73 |
| Queen | 3,583 | -798 |
| Grayburg | 4,182 | -1,397 |
| San Andres | 4,528 | -1,743 |
| Clear Fork | 6,511 | -3,726 |
| Spraberry | 7,776 | -4,991 |
| Jo Mill | 8,277 | -5,492 |
10 TOPS · FIRST 8
Greystoke 1-5 C42-317-46903
0.0 KM · Diamondback E&P LLC · Section with this well →
| Santa Rosa | 1,849 | 936 |
| Yates | 2,723 | 62 |
| Queen | 3,579 | -794 |
| Grayburg | 4,184 | -1,399 |
| San Andres | 4,535 | -1,750 |
| Clear Fork | 6,520 | -3,735 |
| Spraberry | 7,783 | -4,998 |
| Wolfcamp | — |
10 TOPS · FIRST 8
Greystoke 1-5 C42-317-46902
0.0 KM · Diamondback E&P LLC · Section with this well →
| Santa Rosa | 1,227 | 1,558 |
| Yates | 2,710 | 75 |
| Queen | 3,584 | -799 |
| Grayburg | 4,183 | -1,398 |
| San Andres | 4,542 | -1,757 |
| Clear Fork | 6,527 | -3,742 |
| Spraberry | 7,792 | -5,007 |
| Jo Mill | 8,292 | -5,507 |
12 TOPS · FIRST 8
Anaconda 5-4 Unit 242-317-43727
0.0 KM · Endeavor Energy Resources L.P. · Section with this well →
| Santa Rosa | 1,320 | 1,468 |
| Yates | 2,700 | 88 |
| Queen | 3,740 | -952 |
| Grayburg | 4,360 | -1,572 |
| San Andres | 4,734 | -1,946 |
| Spraberry | 7,768 | -4,980 |
| Cisco | — | |
| Pennsylvanian | — |
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/31746898, documented in the API reference.