TEXAS · WELLS · FRIO COUNTY · SHACKELFORD LEASE · API 42-163-33950 · DISTRICT 01
Shackelford #1H
Frio County · Briscoe Ranch (Eagleford) field · Producing · Horizontal
Shackelford #1H (API 42-163-33950) is a horizontal well in Frio County operated by Formentera Operations LLC, completed November 12, 2015 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued May 29, 2015, permitted to 5,527 ft.
It was permitted by SN Operating, LLC and has since transferred to Formentera Operations LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Navarro, Escondido, Olmos, Anacacho.
Its lease has reported 102K barrels of oil and 38K mcf of gas since November 2015, last reporting in July 2026.
Operator of record
Permitted by SN Operating, LLC; 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
- 90
- 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 | SN Operating, LLCMay 29, 2015 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,527
- total depth, ft
- 1
- permits on file
- May 29, 2015
- last permit issued
- Nov 12, 2015
- completed
- 102K
- cumulative oil, bbl
- 38K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Nov 2015 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 12, 2015
- Shut in
- —
- 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 |
|---|---|---|---|---|---|---|
| Shackelford O-1-18814 | Briscoe Ranch (Eagleford) | Formentera Operations LLC | 1 | 102K | 38K | Nov 2015 – Jul 2026 |
Oil, barrels lease total
Last 12 months 4,037 · prior 12 4,101(-2%)
Gas, mcf lease total
Last 12 months 585 · prior 12 807(-28%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1SN Operating, LLCNov 2015 → Jan 2022
- 2Formentera Operations LLCFeb 2022 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 806669-99 | Drill | SN Operating, LLC | May 18, 2015 | May 29, 2015 | Aug 6, 2015 | 9,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Nov 12, 2015 | Shackelford O-1-18814 | Briscoe Ranch (Eagleford) | Formentera Operations LLC | Producing | 5,527 |
Formation tops
As filed on W-2/G-1. Subsea from 595 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Navarro | 2,880 | -2,285 |
| Escondido | 2,945 | -2,350 |
| Olmos | 3,836 | -3,241 |
| Anacacho | 4,650 | -4,055 |
| Austin ChalkAUSTIN CHALK - H2S | 5,088 | -4,493 |
| Eagle FordEAGLE FORD - H2S | 5,567 | -4,972 |
| BudaBUDA - H2S | — | — |
| GeorgetownGEORGETOWN - H2S | — | — |
| Pearsall | — | — |
| Queen City | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,023 | 12,379 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 2,606 | 12.25 | 770 S |
| 5.5 | 12,467 | 8.75 | 1,765 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 | Aug 10, 2016 | Aug 2, 2016 | 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 42-163-33950 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-163-33950 → 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/16333950, documented in the API reference.