TEXAS · WELLS · CRANE COUNTY · API 42-103-03584 · DISTRICT 7B
Sand Hills Tubb Unit #9
Crane County · Sand Hills (Clear Fork 4070) field · Vertical
Sand Hills Tubb Unit #9 (API 42-103-03584) is a plugged well in Crane County, plugged July 17, 2026, last operated by Formentera Operations LLC.
The RRC has issued one drilling permit, issued August 15, 2005, permitted to 4,691 ft.
It was permitted by Encore Operating, L.P. and has since transferred to Formentera Operations LLC on the wellbore schedule.
Completion filings report 2 formation tops, including Lime, Sandy Lime.
Its 2 leases have reported 2.16M barrels of oil and 4.27M mcf of gas since January 1993, last reporting volume in April 2026. The leases carry 81 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Encore Operating, L.P.; the EWA schedule now lists a different operator.
- Based in
- Austin, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Jun 11, 2026
- Permits on file
- 93
- Phone
- (512) 514-5779
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Formentera Operations LLC |
| Production reports | Formentera Operations LLCthrough Apr 2026 |
| Latest permit | Encore Operating, L.P.Aug 15, 2005 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,691
- total depth, ft
- 1
- permits on file
- Aug 15, 2005
- last permit issued
- Sep 30, 2005
- completed
- 2.16M
- cumulative oil, bbl
- 4.27M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Sep 30, 2005
- Shut in
- —
- Plugged
- Jul 17, 2026
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 2 leases this well is completed on; they carry 81 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Sand Hills Tubb Unit O-10-20865 | Sand Hills (Tubb) | Formentera Operations LLC | 80 | 2.15M | 4.23M | Jan 1993 – Apr 2026 |
| Sand Hills Tubb Unit O-10-37794 | Sand Hills (Clear Fork 4070) | Formentera Operations LLC | 1 | 10.6K | 40.1K | Jul 2006 – Jul 2020 |
Oil, barrels lease total
Last 12 months 9,631 · prior 12 12,027(-20%)
Gas, mcf lease total
Last 12 months 2,583 · prior 12 21,156(-88%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Mobil Producing TX. & N.M. Inc.Jan 1993 → Oct 1996
- 2Titan Resources I, Inc.Nov 1996 → May 2000
- 3Pure Resources, L.P.Jun 2000 → Mar 2002
- 4Home-Stake Oil & Gas CompanyApr 2002 → Jul 2002
- 5Cortez Operating CompanyAug 2002 → Apr 2004
- 6Encore Operating, L.P.May 2004 → Aug 2009
- 7Encore Energy Partners Oper LLCSep 2009 → Mar 2012
- 8Vanguard Permian, LLCApr 2012 → Apr 2015
- 9Vanguard Operating, LLCMay 2015 → Aug 2019
- 10Grizzly OP of Delaware, LLCSep 2019 → Jan 2021
- 11Contango Resources, Inc.Feb 2021 → Dec 2021
- 12Contango Resources, LLCJan 2022 → Jun 2022
- 13Slant Operating, LLCJul 2022 → Oct 2023
- 14Formentera Operations LLCNov 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 603681-99 | Recompletion | Encore Operating, L.P. | Jul 19, 2005 | Aug 15, 2005 | Aug 24, 2005 | 4,691 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Sep 30, 2005 | Sand Hills Tubb Unit O-10-37794 | Sand Hills (Clear Fork 4070) | Formentera Operations LLC | Plugged | — |
| Jul 10, 1989 | Sand Hills Tubb Unit O-10-20865 | Sand Hills (Tubb) | Formentera Operations LLC | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,611 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Lime | 3,852 | -1,241 |
| Sandy Lime | 4,325 | -1,714 |
| Lime | 4,346 | -1,735 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,064 | 4,230 | Perforated |
| 4,346 | 4,691 | Open hole |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 451 | — | 175 S |
| 5.5 | 4,346 | — | 225 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Nov 20, 2006 | Jul 5, 2006 | Yes |
| 00 | Aug 3, 2006 | Sep 7, 1989 | — |
| 00 | Oct 3, 1989 | Sep 7, 1989 | — |
| 00 | Jan 12, 1984 | — | — |
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 42-103-03584 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-103-03584 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it. The University Lands library has no per-well link: then paste it into its 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/10303584, documented in the API reference.