TEXAS · WELLS · CRANE COUNTY · SAND HILLS TUBB UNIT LEASE · API 42-103-35003 · DISTRICT 7B
Sand Hills Tubb Unit #89
Crane County · Sand Hills (Wojcik-McElroy) field · Temp Abandoned · Vertical
Sand Hills Tubb Unit #89 (API 42-103-35003) is a well in Crane County operated by Formentera Operations LLC, completed June 24, 2004 and listed as temp abandoned on the RRC schedule, shut in June 1, 2020.
The RRC has issued one drilling permit (amended twice), issued April 22, 2004, permitted to 4,990 ft.
It was permitted by Encore Operating, L.P. and has since transferred to Formentera Operations LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Queen, Mcelroy, Grayburg.
Its lease has reported 2 barrels of oil and 222K mcf of gas since June 2004, with no volume in the three years through April 2026.
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 May 2020 |
| Latest permit | Encore Operating, L.P.Apr 22, 2004 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,990
- total depth, ft
- 3
- permits on file
- Apr 22, 2004
- last permit issued
- Jun 24, 2004
- completed
- 2
- cumulative oil, bbl
- 222K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 2004 THROUGH May 2020
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jun 24, 2004
- Shut in
- Jun 1, 2020
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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 |
|---|---|---|---|---|---|---|
| Sand Hills Tubb Unit G-10-204039 | Sand Hills (Wojcik-McElroy) | Formentera Operations LLC | 1 | 2 | 222K | Jun 2004 – May 2020 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Encore Operating, L.P.Jul 2004 → Aug 2009
- 2Encore Energy Partners Oper LLCSep 2009 → Mar 2012
- 3Vanguard Permian, LLCApr 2012 → Mar 2014
- 4Vanguard Operating, LLCDec 2016 → Aug 2019
- 5Grizzly OP of Delaware, LLCSep 2019 → May 2020
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 544780-97 | Drill | Encore Operating, L.P. | Jun 14, 2004 | Apr 22, 2004 | — | 6,000 |
| 544780-98 | Drill | Encore Operating, L.P. | Jun 3, 2004 | Apr 22, 2004 | — | 6,000 |
| 544780-99 | Drill | Encore Operating, L.P. | Apr 21, 2004 | Apr 22, 2004 | May 19, 2004 | 5,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jun 24, 2004 | Sand Hills Tubb Unit G-10-204039 | Sand Hills (Wojcik-McElroy) | Formentera Operations LLC | Temp Abandoned · shut in Jun 1, 2020 | 4,990 |
Formation tops
As filed on W-2/G-1. Subsea from 2,638 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,456 | 2,602 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 731 | 12.25 | 370 S |
| 5.5 | 4,990 | 7.875 | 990 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 | Dec 29, 2004 | Aug 23, 2004 | Yes |
| 00 | Nov 5, 2004 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received Nov 6, 2007. Density, Neutron. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| Neutron/Density PorosityCOMPENSATED NEUTRON THREE DETECTOR LITHODENSITYSpans Queen, Mcelroy, Grayburg | TIFF | 730 to 4,988 | Nov 6, 2007run May 30, 2004 | — |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-103-35003 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-103-35003 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search 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/10335003, documented in the API reference.