WELL · 42-289-31842 · DISTRICT 5
Fossil Donelson Gas Unit #1 #4
Leon County · Hilltop Resort (Bossier) field · Temp Abandoned · Vertical
Fossil Donelson Gas Unit #1 #4 (API 42-289-31842) is a well in Leon County operated by Contrast Energy LLC, completed June 2, 2010 and listed as temp abandoned on the RRC schedule.
The RRC has issued one drilling permit, issued October 7, 2009, 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 4 formation tops, including Austin Chalk, Tbuda, Tgeorgetown, Edwards.
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 Nov 2023 |
| Latest permit | Gastar Exploration Texas, LPOct 7, 2009 |
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
- 1
- permits on file
- Oct 7, 2009
- last permit issued
- Jun 2, 2010
- completed
- 0
- cumulative oil, bbl
- 7.17M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jun 2010 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jun 2, 2010
- 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-5-258121 | Hilltop Resort (Bossier) | Contrast Energy, LLC | 1 | 0 | 7.17M | Jun 2010 – Jul 2026 |
Gas, mcf lease total
Last 12 months 0 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Gastar Exploration Texas, LPJun 2010 → Sep 2013
- 2Fossil Operating, Inc.Oct 2013 → Nov 2014
- 3Rivershore Operating LLCSep 2019 → Aug 2020
- 4Contrast Energy, LLCSep 2020 → Nov 2023
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 685836-99 | Drill | Gastar Exploration Texas, LP | Oct 6, 2009 | Oct 7, 2009 | Oct 17, 2009 | 20,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-5-258121 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 492 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Austin ChalkBASE AUSTIN CHALK | 6,191 | -5,699 |
| Tbuda | 6,913 | -6,421 |
| Tgeorgetown | 7,019 | -6,527 |
| Edwards | 7,461 | -6,969 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 18,164 | 18,174 | Perforated |
| 18,241 | 18,245 | Perforated |
| 18,514 | 18,527 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 2,868 | 17.5 | 1,990 S |
| 9.625 | 10,994 | 12.25 | 785 S |
| 5 | 18,700 | 6.5 | 315 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 3, 2010 | Aug 30, 2010 | 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 42-289-31842 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-289-31842 → 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/28931842, documented in the API reference.