WELL · 42-289-31427 · DISTRICT 5
Fossil Lone Oak Ranch #1
Leon County · Hilltop Resort (Bossier) field · Producing · Vertical
Fossil Lone Oak Ranch #1 (API 42-289-31427) is a well in Leon County operated by Contrast Energy LLC, completed May 11, 2005 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended twice), issued August 25, 2004, permitted to 20,000 ft.
It was permitted by First Source Gas, LP and has since transferred to Contrast Energy LLC on the wellbore schedule.
Completion filings report 8 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 First Source Gas, 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 Texas Gas, LPAug 25, 2004 |
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
- 3
- permits on file
- Aug 25, 2004
- last permit issued
- May 11, 2005
- completed
- 0
- cumulative oil, bbl
- 3.66M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Dec 2004 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- May 11, 2005
- 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 Lone Oak Ranch G-5-211798 | Hilltop Resort (Bossier) | Contrast Energy, LLC | 1 | 0 | 3.66M | Dec 2004 – Jul 2026 |
Gas, mcf lease total
Last 12 months 71,224 · prior 12 64,023(+11%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1First Texas Gas, LPMay 2005 → May 2005
- 2First Source Gas, LPJun 2005 → Jan 2006
- 3Gastar Exploration Texas, LPFeb 2006 → Sep 2013
- 4Fossil Operating, Inc.Oct 2013 → Sep 2016
- 5Rivershore Operating LLCOct 2016 → Aug 2020
- 6Contrast Energy, LLCSep 2020 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 550097-97 | Other | First Source Gas, LP | Aug 16, 2005 | Aug 25, 2004 | Sep 5, 2004 | 20,000 |
| 550097-98 | Drill | First Texas Gas, LP | Jan 27, 2005 | Aug 25, 2004 | Sep 5, 2004 | 20,000 |
| 550097-99 | Drill | First Source Texas, Inc. | Aug 25, 2004 | Aug 25, 2004 | Sep 5, 2004 | 20,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-5-211798 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 341 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Austin ChalkBASE OF AUSTIN CHALK | 5,710 | -5,369 |
| Buda | 6,400 | -6,059 |
| PettitPETTET | 9,500 | -9,159 |
| Travis Peak | 9,930 | -9,589 |
| Knowles | 13,325 | -12,984 |
| Base Knowles | 13,740 | -13,399 |
| Bossier | 15,100 | -14,759 |
| See Attachment #1 | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 16,154 | 16,160 | Perforated |
| 16,172 | 16,184 | Perforated |
| 16,188 | 16,190 | Perforated |
| 16,200 | 16,205 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 16 | 2,429 | 22 | 3,625 S |
| 11.875 | 10,440 | 14.75 | 2,005 S |
| 5 | 17,600 | 6 | 1,020 S |
| 5 | 17,600 | 6.5 | 1,020 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 3, 2006 | Jun 17, 2005 | — |
| 00 | Jan 20, 2006 | Apr 25, 2005 | Yes |
| 00 | Oct 27, 2005 | — | — |
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 42-289-31427 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-289-31427 → 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/28931427, documented in the API reference.