WELL · 42-317-42535 · DISTRICT 8
Slaughter 79 D #4AH
Martin County · Spraberry (Trend Area) field · Producing · Horizontal
Slaughter 79 D #4AH (API 42-317-42535) is a horizontal well in Martin County operated by Hibernia Resources IV LLC, completed August 15, 2021 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended twice), issued September 12, 2019, permitted to 10,800 ft.
It was permitted by Legacy Reserves Operating LP and has since transferred to Hibernia Resources IV LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Santa Rosa, Yates, Grayburg, San Andres.
Its lease has reported 444K barrels of oil and 703K mcf of gas since February 2020, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Legacy Reserves Operating LP; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Dec 4, 2025 · 66 permits on file · (713) 728-7911
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Hibernia Resources IV LLC |
| Production reports | Hibernia Resources IV, LLCthrough Apr 2026 |
| Latest permit | Legacy Reserves Operating LPSep 12, 2019 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,800
- total depth, ft
- 3
- permits on file
- Sep 12, 2019
- last permit issued
- Aug 15, 2021
- completed
- 444K
- cumulative oil, bbl
- 703K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 2020 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 15, 2021
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
Surface location
32.470415, -101.941282
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 |
|---|---|---|---|---|---|---|
| Slaughter 79 D O-10-56120 | Spraberry (Trend Area) | Hibernia Resources IV, LLC | 2 | 444K | 703K | Feb 2020 – Jul 2026 |
Oil, barrels lease total
Last 12 months 23,883 · prior 12 33,688(-29%)
Gas, mcf lease total
Last 12 months 121,976 · prior 12 98,149(+24%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Legacy Reserves Operating LPAug 2021 → Apr 2024
- 2Hibernia Resources IV, LLCMay 2024 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 856795-97 | Drill | Legacy Reserves Operating LP | Jan 13, 2021 | Sep 12, 2019 | Jan 10, 2020 | 10,800 |
| 856795-98 | Drill | Legacy Reserves Operating LP | Jan 2, 2020 | Sep 12, 2019 | Jan 10, 2020 | 10,800 |
| 856795-99 | Drill | Legacy Reserves Operating LP | Sep 5, 2019 | Sep 12, 2019 | Jan 10, 2020 | 10,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-56120 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,747 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa Rosa | 1,761 | 986 |
| Yates | 2,459 | 288 |
| Grayburg | 3,635 | -888 |
| San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H | 3,894 | -1,147 |
| Spraberry | 7,545 | -4,798 |
| Dean | 8,908 | -6,161 |
| Wolfcamp | 9,135 | -6,388 |
| Cisco | — | — |
| Pennsylvanian | — | — |
| Queen | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,532 | 16,517 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 575 | 17.5 | 650 S |
| 9.625 | 6,037 | 12.25 | 1,750 S |
| 5.5 | 16,807 | 8.75 | 2,900 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 | Dec 10, 2021 | Nov 11, 2021 | Yes |
| 00 | Sep 22, 2021 | Sep 15, 2021 | 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 42-317-42535 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-42535 → 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.
Slaughter 79 C42-317-42831
0.0 KM · Legacy Reserves Operating LP · Section with this well →
| Santa Rosa | 1,761 | 986 |
| Yates | 2,459 | 288 |
| Grayburg | 3,635 | -888 |
| San Andres | 3,894 | -1,147 |
| Spraberry | 7,545 | -4,798 |
| Dean | 8,908 | -6,161 |
| Wolfcamp | 9,135 | -6,388 |
| Pennsylvanian | — |
10 TOPS · FIRST 8
Slaughter 79 D42-317-42973
0.0 KM · Legacy Reserves Operating LP · Section with this well →
| Santa Rosa | 1,761 | 986 |
| Yates | 2,459 | 288 |
| Grayburg | 3,635 | -888 |
| San Andres | 3,894 | -1,147 |
| Spraberry | 7,545 | -4,798 |
| Dean | 8,908 | -6,161 |
| Cisco | — | |
| Wolfcamp | — |
10 TOPS · FIRST 8
Slaughter 79 A42-317-43067
0.3 KM · Legacy Reserves Operating LP · Section with this well →
| Santa Rosa | 1,761 | 987 |
| Yates | 2,459 | 289 |
| Grayburg | 3,635 | -887 |
| San Andres | 3,894 | -1,146 |
| Spraberry | 7,545 | -4,797 |
| Dean | 8,908 | -6,160 |
| Pennsylvanian | — | |
| Wolfcamp | — |
10 TOPS · FIRST 8
Slaughter 79 A42-317-42868
0.3 KM · Legacy Reserves Operating LP · Section with this well →
| Santa Rosa | 1,761 | 987 |
| Yates | 2,459 | 289 |
| Queen | 3,400 | -652 |
| Grayburg | 3,635 | -887 |
| San Andres | 3,894 | -1,146 |
| Spraberry | 7,545 | -4,797 |
| Dean | 8,908 | -6,160 |
| Wolfcamp | 9,135 | -6,387 |
10 TOPS · FIRST 8
EL Diablo 79-7842-317-43877
0.5 KM · Element Petroleum OP III, LLC · Section with this well →
| Santa Rosa | 1,244 | 1,504 |
| Yates | 2,481 | 267 |
| Queen | 3,396 | -648 |
| Grayburg | 3,924 | -1,176 |
| San Andres | 4,187 | -1,439 |
| Spraberry | 7,544 | -4,796 |
| Dean | 8,909 | -6,161 |
| Wolfcamp | 9,135 | -6,387 |
10 TOPS · FIRST 8
EL Diablo 79-7842-317-43878
0.5 KM · Element Petroleum OP III, LLC · Section with this well →
| Santa Rosa | 1,242 | 1,506 |
| Yates | 2,474 | 274 |
| Queen | 3,393 | -645 |
| Grayburg | 3,922 | -1,174 |
| San Andres | 4,184 | -1,436 |
| Spraberry | 7,537 | -4,789 |
| Cisco | — | |
| Dean | — |
10 TOPS · FIRST 8
EL Diablo 79-7842-317-43879
0.5 KM · Element Petroleum OP III, LLC · Section with this well →
| Santa Rosa | 1,243 | 1,505 |
| Yates | 2,482 | 266 |
| Queen | 3,394 | -646 |
| Grayburg | 3,927 | -1,179 |
| San Andres | 4,184 | -1,436 |
| Spraberry | 7,544 | -4,796 |
| Dean | 8,904 | -6,156 |
| Wolfcamp | 9,110 | -6,362 |
10 TOPS · FIRST 8
EL Diablo 79-7842-317-43880
0.5 KM · Element Petroleum OP III, LLC · Section with this well →
| Santa Rosa | 1,243 | 1,505 |
| Yates | 2,476 | 272 |
| Queen | 3,375 | -627 |
| Grayburg | 3,914 | -1,166 |
| San Andres | 4,172 | -1,424 |
| Spraberry | 7,550 | -4,802 |
| 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/31742535, documented in the API reference.