TEXAS · WELLS · PARKER COUNTY · LOST HORSE UNIT LEASE · API 42-367-33450 · DISTRICT 7C
Lost Horse Unit #1
Parker County · Newark East (Barnett Shale) field · Producing · Horizontal
Lost Horse Unit #1 (API 42-367-33450) is a horizontal well in Parker County operated by Eagleridge Operating LLC, completed November 12, 2003 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued July 2, 2003, permitted to 6,491 ft.
It was permitted by Republic Energy Inc. and has since transferred to Eagleridge Operating LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Marble Falls, Barnett, Ellenburger.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Republic Energy Inc.; the EWA schedule now lists a different operator.
- Based in
- Dallas, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Apr 8, 2026
- Permits on file
- 129
- Phone
- (214) 295-6704
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Eagleridge Operating LLC |
| Production reports | Eagleridge Operating, LLCthrough Apr 2026 |
| Latest permit | Republic Energy Inc.Jul 2, 2003 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,491
- total depth, ft
- 2
- permits on file
- Jul 2, 2003
- last permit issued
- Nov 12, 2003
- completed
- 0
- cumulative oil, bbl
- 1.45M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Nov 2003 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 12, 2003
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active – Extension (X)
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 |
|---|---|---|---|---|---|---|
| Lost Horse Unit G-13-199452 | Newark, East (Barnett Shale) | Eagleridge Operating, LLC | 1 | 0 | 1.45M | Nov 2003 – Jul 2026 |
Gas, mcf lease total
Last 12 months 31,081 · prior 12 33,007(-6%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Republic Energy Inc.Nov 2003 → May 2005
- 2Burlington Resources O & G Co LPJun 2005 → Dec 2010
- 3Premier Natural Resources Ii,llcFeb 2011 → Feb 2015
- 4Trinity River Energy Oper, LLCMar 2015 → Jun 2017
- 5Eagleridge Operating, LLCJul 2017 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 533757-98 | Drill | Republic Energy Inc. | Jan 14, 2004 | Jul 2, 2003 | Jul 5, 2003 | 6,800 |
| 533757-99 | Drill | Republic Energy Inc. | Jul 2, 2003 | Jul 2, 2003 | — | 6,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Nov 12, 2003 | Lost Horse Unit G-13-199452 | Newark East (Barnett Shale) | Eagleridge Operating LLC | Producing | 6,491 |
Formation tops
As filed on W-2/G-1. Subsea from 870 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Marble Falls | 5,790 | -4,920 |
| BarnettUPPER BARNETT SHALE | 6,330 | -5,460 |
| Ellenburger | 6,654 | -5,784 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,300 | 7,500 | Perforated |
| 7,680 | 7,810 | Perforated |
| 8,070 | 8,200 | Perforated |
| 8,400 | 8,530 | Perforated |
| 8,680 | 8,830 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 899 | 14.75 | 625 S |
| 5.5 | 8,882 | 7.875 | 695 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 | Apr 8, 2004 | Jan 22, 2004 | Yes |
| 00 | Mar 2, 2004 | — | — |
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 42-367-33450 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-367-33450 → 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/36733450, documented in the API reference.