WELL · 42-317-46847 · DISTRICT 8
Heidelberg 30-31 B #1LS
Martin County · Spraberry (Trend Area) field · Producing · Horizontal
Heidelberg 30-31 B #1LS (API 42-317-46847) is a horizontal well in Martin County operated by Diamondback E&P LLC, completed January 17, 2026 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued June 23, 2025, permitted to 12,500 ft.
Completion filings report 14 formation tops, including Yates, Queen, Grayburg, San Andres.
Its lease has reported 183K barrels of oil and 227K mcf of gas since September 2025, last reporting in July 2026. The lease carries 2 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 LLCJun 23, 2025 |
- 12,500
- total depth, ft
- 2
- permits on file
- Jun 23, 2025
- last permit issued
- Jan 17, 2026
- completed
- 183K
- cumulative oil, bbl
- 227K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2025 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jan 17, 2026
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
32.237552, -101.785277
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; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Heidelberg 30-31 B O-10-64379 | Spraberry (Trend Area) | Diamondback E&P LLC | 2 | 183K | 227K | Sep 2025 – Jul 2026 |
Oil, barrels lease total
Last 12 months 182,956 · prior 12 0
Gas, mcf lease total
Last 12 months 226,936 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Diamondback E&P LLCJan 2026 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 908605-98 | Drill | Diamondback E&P LLC | Jul 31, 2025 | Jun 23, 2025 | Jul 15, 2025 | 12,500 |
| 908605-99 | Drill | Diamondback E&P LLC | Jun 13, 2025 | Jun 23, 2025 | Jul 14, 2025 | 12,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-64379 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,677 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 2,248 | 429 |
| Yates | 2,727 | -50 |
| Queen | 3,126 | -449 |
| Grayburg | 3,448 | -771 |
| San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H | 3,716 | -1,039 |
| San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H | 4,015 | -1,338 |
| Clear ForkCLEARFORK | 5,682 | -3,005 |
| Spraberry | 6,989 | -4,312 |
| Spraberry | 7,003 | -4,326 |
| Cisco | — | — |
| Dean | — | — |
| Ellenburger | — | — |
| Fusselman | — | — |
| Grayburg | — | — |
| Precambrian (Undifferentiated) | — | — |
| Queen | — | — |
| Santa Rosa | — | — |
| Silurian (undifferentiated)SILURIAN | — | — |
| Wolfcamp | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,461 | 18,726 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 11.75 | 1,731 | 14.75 | 1,025 S |
| 8.625 | 5,628 | 9.875 | 655 S |
| 5.5 | 18,778 | 7.875 | 1,865 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 | May 14, 2026 | Apr 2, 2026 | — |
| 00 | Jan 23, 2026 | Dec 23, 2025 | 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 42-317-46847 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-46847 → 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.
Heidelberg 30-31 A42-317-46869
0.0 KM · Diamondback E&P LLC · Section with this well →
| Yates | 2,248 | 430 |
| Queen | 3,126 | -448 |
| San Andres | 4,015 | -1,337 |
| Clear Fork | 5,682 | -3,004 |
| Spraberry | 6,989 | -4,311 |
| Dean | 8,325 | -5,647 |
| Wolfcamp | 8,514 | -5,836 |
| Santa Rosa | — |
10 TOPS · FIRST 8
Heidelberg 30-31 A42-317-46846
0.0 KM · Diamondback E&P LLC · Section with this well →
| Yates | 2,251 | 426 |
| Grayburg | 3,428 | -751 |
| San Andres | 3,698 | -1,021 |
| Clear Fork | 5,678 | -3,001 |
| Spraberry | 6,999 | -4,322 |
| Cisco | — | |
| Wolfcamp | — | |
| Santa Rosa | — |
10 TOPS · FIRST 8
Heidelberg 30-31 B42-317-46854
0.0 KM · Diamondback E&P LLC · Section with this well →
| Yates | 2,266 | 412 |
| Grayburg | 3,443 | -765 |
| San Andres | 3,712 | -1,034 |
| Clear Fork | 5,693 | -3,015 |
| Spraberry | 7,007 | -4,329 |
| Dean | 8,334 | -5,656 |
| Wolfcamp | 8,517 | -5,839 |
| Queen | — |
11 TOPS · FIRST 8
Heidelberg 30-31 D42-317-46857
0.0 KM · Diamondback E&P LLC · Section with this well →
| Yates | 2,297 | 382 |
| Grayburg | 3,475 | -796 |
| San Andres | 3,745 | -1,066 |
| Clear Fork | 5,694 | -3,015 |
| Spraberry | 7,005 | -4,326 |
| Dean | 8,343 | -5,664 |
| Wolfcamp | 8,530 | -5,851 |
| Cisco | — |
11 TOPS · FIRST 8
Heidelberg 30-31 C42-317-46855
0.0 KM · Diamondback E&P LLC · Section with this well →
| Yates | 2,262 | 417 |
| Grayburg | 3,439 | -760 |
| San Andres | 3,709 | -1,030 |
| Clear Fork | 5,689 | -3,010 |
| Spraberry | 7,008 | -4,329 |
| Dean | 8,341 | -5,662 |
| Wolfcamp | 8,530 | -5,851 |
| Cisco | — |
11 TOPS · FIRST 8
Roll Call 29-32 M42-317-44816
0.4 KM · Diamondback E&P LLC · Section with this well →
| Yates | 2,156 | 439 |
| Grayburg | 3,122 | -527 |
| San Andres | 3,587 | -992 |
| Clear Fork | 5,664 | -3,069 |
| Spraberry | 6,924 | -4,329 |
| Dean | 8,237 | -5,642 |
| Wolfcamp | 8,425 | -5,830 |
| Queen | — |
10 TOPS · FIRST 8
Roll Call 29-32 G42-317-44820
0.4 KM · Diamondback E&P LLC · Section with this well →
| Yates | 2,161 | 433 |
| Grayburg | 3,125 | -531 |
| San Andres | 3,591 | -997 |
| Clear Fork | 5,672 | -3,078 |
| Spraberry | 6,925 | -4,331 |
| Cisco | — | |
| Dean | — | |
| Queen | — |
10 TOPS · FIRST 8
Roll Call 29-32 B42-317-44806
0.4 KM · Diamondback E&P LLC · Section with this well →
| Dean | — | |
| Yates | — | |
| Wolfcamp | — | |
| Spraberry | — | |
| Santa Rosa | — | |
| San Andres | — | |
| Queen | — | |
| 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/31746847, documented in the API reference.