WELL · 42-289-31491 · DISTRICT 5
Fossil Donelson Gas Unit #1 #1
Leon County · Hilltop Resort (Bossier) field · Producing · Directional
Fossil Donelson Gas Unit #1 #1 (API 42-289-31491) is a well in Leon County operated by Contrast Energy LLC, completed September 20, 2008 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended 3 times), issued May 20, 2005, permitted to 20,000 ft.
It was permitted by Gastar Exploration Texas, LP and has since transferred to Contrast Energy LLC on the wellbore schedule.
Completion filings report 6 formation tops, including Austin Chalk, Buda, Pettit, Travis Peak.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Gastar Exploration Texas, LP; the EWA schedule now lists a different operator.
Tulsa, OK · P-5 Y, filed Nov 4, 2025 · (800) 251-3098
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Contrast Energy LLC |
| Production reports | Contrast Energy, LLCthrough Apr 2026 |
| Latest permit | First Source Gas, LPMay 20, 2005 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 20,000
- total depth, ft
- 4
- permits on file
- May 20, 2005
- last permit issued
- Sep 20, 2008
- completed
- 0
- cumulative oil, bbl
- 5.64M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 2006 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 20, 2008
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
Surface location
No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.
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 |
|---|---|---|---|---|---|---|
| Fossil Donelson Gas Unit #1 G-5-218220 | Hilltop Resort (Bossier) | Contrast Energy, LLC | 1 | 0 | 5.64M | Jan 2006 – Jul 2026 |
Gas, mcf lease total
Last 12 months 34,042 · prior 12 27,126(+25%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Gastar Exploration Texas, LPJan 2006 → Sep 2013
- 2Fossil Operating, Inc.Oct 2013 → Sep 2016
- 3Rivershore Operating LLCOct 2016 → Aug 2020
- 4Contrast Energy, LLCSep 2020 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 600995-96 | Drill | Gastar Exploration Texas, LP | Jun 16, 2006 | May 20, 2005 | May 24, 2005 | 20,000 |
| 600995-97 | Drill | First Source Gas, LP | Nov 11, 2005 | May 20, 2005 | May 24, 2005 | 20,000 |
| 600995-98 | Drill | First Source Gas, LP | Sep 2, 2005 | May 20, 2005 | May 24, 2005 | 20,000 |
| 600995-99 | Drill | First Texas Gas, LP | May 20, 2005 | May 20, 2005 | May 24, 2005 | 20,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-5-218220 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 510 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Austin Chalk | 5,150 | -4,640 |
| Austin ChalkBASE AUSTIN CHALK | 6,222 | -5,712 |
| Buda | 6,950 | -6,440 |
| Pettit | 10,260 | -9,750 |
| Travis Peak | 10,731 | -10,221 |
| Knowles | 14,145 | -13,635 |
| Bossier | 14,920 | -14,410 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 17,795 | 17,802 | Perforated |
| 18,561 | 18,563 | Perforated |
| 18,561 | 18,606 | Perforated |
| 18,588 | 18,594 | Perforated |
| 18,602 | 18,606 | Perforated |
| 18,709 | 18,714 | Perforated |
| 18,709 | 18,745 | Perforated |
| 18,734 | 18,738 | Perforated |
| 18,743 | 18,745 | Perforated |
| 18,935 | 18,937 | Perforated |
| 18,935 | 18,962 | Perforated |
| 18,956 | 18,962 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 16 | 2,843 | 22 | 3,635 S |
| 11.875 | 11,000 | 14.75 | 2,750 S |
| 7.625 | 15,750 | 8.5 | 255 S |
| 5 | 19,200 | 6.5 | 955 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 29, 2009 | Apr 1, 2009 | — |
| 00 | Jun 21, 2007 | May 10, 2006 | — |
| 00 | Jun 20, 2007 | May 25, 2006 | — |
| 00 | Jun 19, 2007 | Apr 12, 2006 | — |
| 00 | Jan 5, 2007 | Feb 17, 2006 | Yes |
| 00 | Aug 17, 2006 | — | — |
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 42-289-31491 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-289-31491 → 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.
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/28931491, documented in the API reference.