WELL · 42-401-34921 · DISTRICT 6
Gray GU 1 #4
Rusk County · Oak Hill (Cotton Valley) field · Vertical
Gray GU 1 #4 (API 42-401-34921) is a well in Rusk County operated by Nfr Energy LLC, completed January 5, 2009.
The RRC has issued 2 drilling permits (amended once) between 2008 and 2018, permitted to 13,000 ft.
It was permitted by Sabine Oil & Gas Corporation and has since transferred to Nfr Energy LLC on the wellbore schedule.
Completion filings report 9 formation tops, including Nacatoch, Paluxy, Rodessa, James Lime.
Its 3 leases have reported 50.3K barrels of oil and 803K mcf of gas since January 2009, last reporting in July 2026. The leases carry 4 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Sabine Oil & Gas Corporation; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Aug 8, 2014 · 265 permits on file · (866) 520-0402
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | NFR Energy LLC |
| Production reports | Sabine Energy Inc.through Apr 2026 |
| Latest permit | Sabine Oil & Gas CorporationOct 3, 2018 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 13,000
- total depth, ft
- 3
- permits on file
- Oct 3, 2018
- last permit issued
- Jan 5, 2009
- completed
- 50.3K
- cumulative oil, bbl
- 803K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 2009 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jan 5, 2009
- Shut in
- —
- Plugged
- —
Surface location
32.157631, -94.837036
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Rusk County.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the 3 leases this well is completed on; they carry 4 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Gray GU 1 G-6-285829 | Oak Hill (Travis Peak) | Sabine Energy Inc. | 1 | 0 | 0 | Oct 2018 – Jul 2026 |
| Gray GU 1 O-6-14990 | Oak Hill (Cotton Valley) | Sabine Energy Inc. | 2 | 50.3K | 682K | Sep 2010 – Jul 2026 |
| Gray GU 1 G-6-245587 | Oak Hill (Cotton Valley) | NFR Energy, LLC | 1 | 0 | 121K | Jan 2009 – Jan 2011 |
Gas, mcf lease total
Last 12 months 45,015 · prior 12 47,712(-6%)
Oil, barrels lease total
Last 12 months 2,664 · prior 12 1,787(+49%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1NFR Energy, LLCJan 2009 → Jan 2013
- 2Sabine Oil & Gas LLCFeb 2013 → Mar 2015
- 3Sabine Oil & Gas CorporationApr 2015 → Dec 2025
- 4Sabine Energy Inc.Jan 2026 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 845214-99 | Recompletion | Sabine Oil & Gas Corporation | Oct 1, 2018 | Oct 3, 2018 | Sep 27, 2018 | 10,973 |
| 670568-98 | Drill | NFR Energy, LLC | Dec 15, 2008 | Jan 5, 2009 | Oct 15, 2008 | 13,000 |
| 670568-99 | Drill | NFR Energy, LLC | Sep 5, 2008 | Sep 23, 2008 | Oct 15, 2008 | 13,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-6-245587 | — | — | — | — |
| — | — G-6-285829 | — | — | — | — |
| — | — O-6-14990 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 443 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Nacatoch | 1,800 | -1,357 |
| Paluxy | 4,510 | -4,067 |
| Rodessa | 6,020 | -5,577 |
| James Lime | 6,932 | -6,489 |
| PettitPETTET | 7,133 | -6,690 |
| Pettit | 7,163 | -6,720 |
| SligoSLIGO (PETTIT) | 7,163 | -6,720 |
| Travis Peak | 7,230 | -6,787 |
| Travis Peak | 7,430 | -6,987 |
| Cotton Valley | 9,299 | -8,856 |
| WoodbineWOODBINE - EAST TEXAS FIELD (DIS | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,246 | 7,250 | Perforated |
| 7,271 | 7,276 | Perforated |
| 7,392 | 7,400 | Perforated |
| 7,454 | 7,502 | Perforated |
| 9,452 | 9,628 | Perforated |
| 10,564 | 10,764 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,340 | 12.25 | 454 S |
| 5.5 | 10,930 | 8.75 | 2,150 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 | Feb 21, 2019 | Dec 10, 2018 | — |
| 00 | Dec 20, 2018 | Nov 5, 2018 | — |
| 00 | Dec 7, 2010 | Oct 29, 2010 | Yes |
| 00 | Apr 2, 2009 | Feb 23, 2009 | Yes |
| 00 | Mar 12, 2009 | — | — |
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 42-401-34921 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-401-34921 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). 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.
Maddox Travis Peak Gas Unit42-401-31108
0.6 KM · Rme Petroleum Company · Section with this well →
| Nacatoch | 1,800 | -1,346 |
| Woodbine | 3,330 | -2,876 |
| T. Duck Creek Shale | 4,050 | -3,596 |
| T. Duck Creek Lime | 4,130 | -3,676 |
| Paluxy | 4,510 | -4,056 |
| T. Paluxy | 4,560 | -4,106 |
| T. Upper Glen Rose | 4,840 | -4,386 |
| Rodessa | 6,020 | -5,566 |
18 TOPS · FIRST 8
Webb OU42-401-35487
0.8 KM · Sabine Oil & Gas Corporation · Section with this well →
| Nacatoch | 2,144 | -1,649 |
| Paluxy | 4,583 | -4,088 |
| Rodessa | 6,524 | -6,029 |
| Pettit | 7,211 | -6,716 |
| Travis Peak | — | |
| Woodbine | — | |
| Cotton Valley | — |
Gray-Webb (AW)42-401-35405
0.9 KM · Sabine Oil & Gas Corporation · Section with this well →
| Nacatoch | 2,127 | -1,633 |
| Woodbine | 3,412 | -2,918 |
| Paluxy | 4,601 | -4,107 |
| Rodessa | 6,539 | -6,045 |
| Pettit | 7,228 | -6,734 |
| Travis Peak | 7,444 | -6,950 |
| Cotton Valley | 9,507 | -9,013 |
Maddox Estate Unit42-401-34085
1.3 KM · Cci East Texas Upstream LLC · Section with this well →
| Austin Chalk | 3,247 | -2,825 |
| Massive A | 6,250 | -5,828 |
| Pettit | 7,206 | -6,784 |
| Pettete | 7,206 | -6,784 |
| Travis Peak | 7,430 | -7,008 |
| Cotton Valley | 9,244 | -8,822 |
| Bossier | 10,282 | -9,860 |
Dollar Gas Unit No. 142-401-34079
2.0 KM · Sabine Oil & Gas Corporation · Section with this well →
| Massive Anhydrite (marker) | 6,552 | -6,106 |
| James Lime | 7,012 | -6,566 |
| Pettit | 7,248 | -6,802 |
| Pettit | 7,248 | -6,802 |
| Travis Peak | 7,536 | -7,090 |
| Travis Peak | 7,556 | -7,110 |
| Cotton Valley | 9,495 | -9,049 |
| Cotton Valley | 9,495 | -9,049 |
10 TOPS · FIRST 8
Dollar Gas Unit No. 142-401-34796
2.1 KM · Sabine Oil & Gas Corporation · Section with this well →
| Travis Peak | 7,483 | -7,033 |
| Cotton Valley | 9,298 | -8,848 |
| Taylor | 10,608 | -10,158 |
| Bossier | 10,838 | -10,388 |
Wesson GU42-401-33539
2.1 KM · Sabine Oil & Gas Corporation · Section with this well →
| Massive Anhydrite (marker) | 6,344 | -5,902 |
| Base Anhydrite | 6,344 | -5,902 |
| Rodessa | 6,571 | -6,129 |
| James Lime | 6,960 | -6,518 |
| Pettit | 7,279 | -6,837 |
| Travis Peak | 7,478 | -7,036 |
| Cotton Valley | 9,479 | -9,037 |
| Cotton Valley | 10,574 | -10,132 |
9 TOPS · FIRST 8
Hardy Heirs42-401-33318
2.3 KM · Sabine Oil & Gas Corporation · Section with this well →
| Rodessa | 6,500 | -6,047 |
| Pettit | 7,200 | -6,747 |
| Travis Peak | 7,500 | -7,047 |
| Cotton Valley | 8,800 | -8,347 |
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/40134921, documented in the API reference.