WELL · 42-495-33238 · DISTRICT 8
UL Pahaska B 21-6 #S008H
Winkler County · Two Georges (Bone Spring) field · Horizontal
UL Pahaska B 21-6 #S008H (API 42-495-33238) is a horizontal well in Winkler County operated by Callon Permian II LLC, completed July 24, 2007.
The RRC has issued 2 drilling permits (amended once) between 2006 and 2022, permitted to 20,000 ft.
It was permitted by Percussion Petroleum Oper II,LLC and has since transferred to Callon Permian II LLC on the wellbore schedule.
Completion filings report 6 formation tops, including Bone Spring, Bspg1, Bspg2, Bspg3.
Its 2 leases have reported 784K barrels of oil and 936K mcf of gas since July 2007, last reporting in July 2026. The leases carry 7 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Percussion Petroleum Oper Ii,llc; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed May 3, 2024 · (800) 301-5122
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Callon Permian II LLC |
| Production reports | Apache Corporationthrough Apr 2026 |
| Latest permit | Percussion Petroleum Oper Ii,llcNov 15, 2022 |
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
- Nov 15, 2022
- last permit issued
- Jul 24, 2007
- completed
- 784K
- cumulative oil, bbl
- 936K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 2007 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jul 24, 2007
- Shut in
- —
- Plugged
- —
Surface location
31.752199, -103.272003
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Winkler County.
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 7 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| UL Pahaska 21-6 O-10-58001 | Phantom (Wolfcamp) | Apache Corporation | 6 | 660K | 831K | May 2022 – Jul 2026 |
| UL Pahaska B 21-6 O-10-38374 | Two Georges (Bone Spring) | Callon Permian II, LLC | 1 | 124K | 105K | Jul 2007 – Sep 2023 |
Oil, barrels lease total
Last 12 months 125,206 · prior 12 121,243(+3%)
Gas, mcf lease total
Last 12 months 158,650 · prior 12 159,472(-1%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Chesapeake Operating, Inc.Jul 2007 → Sep 2012
- 2Shell Western E&POct 2012 → Jun 2016
- 3Forge Energy, LLCOct 2016 → Jan 2018
- 4Oasis Petroleum Permian LLCFeb 2018 → Feb 2021
- 5Percussion Petroleum Oper Ii,llcMar 2021 → Jul 2023
- 6Callon Permian II, LLCAug 2023 → Jul 2024
- 7Apache CorporationAug 2024 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 885505-99 | Field transfer | Percussion Petroleum Oper Ii,llc | Nov 3, 2022 | Nov 15, 2022 | — | 20,000 |
| 630716-98 | Drill | Chesapeake Operating, Inc. | Jul 11, 2007 | Dec 19, 2006 | Feb 14, 2007 | 20,000 |
| 630716-99 | Drill | Chesapeake Operating, Inc. | Dec 19, 2006 | Dec 19, 2006 | Feb 14, 2007 | 20,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-38374 | — | — | — | — |
| — | — O-10-58001 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,832 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Bone SpringBONE SPRING 1 | 8,965 | -6,133 |
| BSPG1 | 8,967 | -6,135 |
| Bone SpringBONE SPRING 2 | 9,998 | -7,166 |
| BSPG2 | 10,000 | -7,168 |
| Bone SpringBONE SPRING 3 | 10,808 | -7,976 |
| BSPG3 | 10,811 | -7,979 |
| Phantom (Wolfcamp) | 11,715 | -8,883 |
| Bspg Target | 12,246 | -9,414 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 12,170 | 13,530 | Perforated |
| 13,851 | 15,180 | Perforated |
| 15,648 | 15,869 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 5,140 | 12.25 | 1,355 S |
| 7 | 11,220 | 8.75 | 340 S |
| 9.625 | — | 12.25 | 1,250 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 | Jan 30, 2023 | Nov 16, 2022 | — |
| 00 | Dec 7, 2022 | Aug 16, 2007 | Yes |
| 00 | Jan 4, 2008 | Aug 16, 2007 | Yes |
| 00 | Dec 12, 2007 | — | — |
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 42-495-33238 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-495-33238 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. then paste it into their search.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
UL Pahaska 21-642-495-34658
0.3 KM · Percussion Petroleum Oper Ii,llc · Section with this well →
| Delaware | 5,205 | -2,369 |
| Bone Spring | 10,881 | -8,045 |
| Colby / Queen | — | |
| Seven Rivers | — | |
| Capitan | — | |
| Yates | — | |
| Glorieta | — | |
| Holt | — |
10 TOPS · FIRST 8
UL Pahaska 21-642-495-34657
0.3 KM · Percussion Petroleum Oper Ii,llc · Section with this well →
| Delaware | 5,196 | -2,361 |
| Capitan | — | |
| Yates | — | |
| Seven Rivers | — | |
| San Andres | — | |
| Rustler | — | |
| Holt | — | |
| Glorieta | — |
10 TOPS · FIRST 8
UL Pahaska 21-642-495-34683
0.4 KM · Percussion Petroleum Oper Ii,llc · Section with this well →
| Delaware | 5,195 | -2,367 |
| Yates | — | |
| Capitan | — | |
| Clear Fork | — | |
| Colby / Queen | — | |
| San Andres | — | |
| Seven Rivers | — | |
| Glorieta | — |
10 TOPS · FIRST 8
UL Pahaska 21-642-495-34655
0.4 KM · Percussion Petroleum Oper Ii,llc · Section with this well →
| Delaware | 5,189 | -2,360 |
| Capitan | — | |
| Clear Fork | — | |
| Colby / Queen | — | |
| Glorieta | — | |
| Holt | — | |
| Rustler | — | |
| San Andres | — |
10 TOPS · FIRST 8
UL Pahaska 21-642-495-34654
0.4 KM · Percussion Petroleum Oper Ii,llc · Section with this well →
| Delaware | 5,193 | -2,365 |
| Seven Rivers | — | |
| Clear Fork | — | |
| San Andres | — | |
| Rustler | — | |
| Holt | — | |
| Glorieta | — | |
| Capitan | — |
10 TOPS · FIRST 8
UL 21 Pahaska42-495-34652
0.4 KM · Percussion Petroleum Oper Ii,llc · Section with this well →
| Delaware | 5,193 | -5,172 |
| Capitan | — | |
| Yates | — | |
| Seven Rivers | — | |
| San Andres | — | |
| Rustler | — | |
| Holt | — | |
| Glorieta | — |
10 TOPS · FIRST 8
University B21 842-495-33880
1.2 KM · Mewbourne Oil Company · Section with this well →
| Delaware | 571 | 2,267 |
| Rustler | 860 | 1,978 |
| Clear Fork | — | |
| Yates | — | |
| Colby-Queen | — | |
| Glorieta | — | |
| Holt | — | |
| Queen | — |
10 TOPS · FIRST 8
University B20 142-495-33912
1.5 KM · Mewbourne Oil Company · Section with this well →
| Rustler | 814 | 2,006 |
| Delaware | 5,138 | -2,318 |
| Yates | — | |
| San Andres | — | |
| Queen | — | |
| Holt | — | |
| Glorieta | — | |
| Clear Fork | — |
10 TOPS · FIRST 8
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/49533238, documented in the API reference.