WELL · 42-451-31278 · DISTRICT 7
Anson Louise B #20
Tom Green County · H-J (Strawn) field · Vertical
Anson Louise B #20 (API 42-451-31278) is a plugged well in Tom Green County, plugged March 25, 2014, last operated by Crescent Energy Operating LLC.
The RRC has issued 2 drilling permits between 1983 and 2010, permitted to 6,000 ft.
It was permitted by Vanguard Permian, LLC and has since transferred to Crescent Energy Operating LLC on the wellbore schedule.
Completion filings report 4 formation tops, including Wolfcamp, Strawn, Wolf Camp, Home Creek.
Its 2 leases have reported 278K barrels of oil and 186K mcf of gas since January 1993, last reporting in July 2026. The leases carry 10 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Vanguard Permian, LLC; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed May 4, 2026 · 54 permits on file · (713) 953-8604
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Crescent Energy Operating LLC |
| Production reports | Crescent Energy Operating, LLCthrough Apr 2026 |
| Latest permit | Vanguard Permian, LLCApr 9, 2010 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,000
- total depth, ft
- 2
- permits on file
- Apr 9, 2010
- last permit issued
- Dec 11, 1983
- completed
- 278K
- cumulative oil, bbl
- 186K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Dec 11, 1983
- Shut in
- —
- Plugged
- Mar 25, 2014
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 10 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Anson, Louise "B" O-9-11991 | H-J (Strawn) | Crescent Energy Operating, LLC | 9 | 278K | 186K | Jan 1993 – Jul 2026 |
| Anson, Louise B O-9-18506 | Wildcat | Vanguard Permian, LLC | 1 | 0 | 0 | Jun 2012 – Jul 2014 |
Oil, barrels lease total
Last 12 months 2,750 · prior 12 990(+178%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1MW Petroleum CorporationJan 1993 → Aug 1998
- 2Apache CorporationSep 1998 → Feb 2008
- 3Vanguard Permian, LLCMar 2008 → Apr 2015
- 4Vanguard Operating, LLCMay 2015 → Aug 2019
- 5Grizzly OP of Delaware, LLCSep 2019 → Jan 2021
- 6Contango Resources, Inc.Feb 2021 → Dec 2021
- 7Contango Resources, LLCJan 2022 → Oct 2025
- 8Crescent Energy Operating, LLCNov 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 693929-99 | Recompletion | Vanguard Permian, LLC | Apr 5, 2010 | Apr 9, 2010 | Jun 2, 2010 | 6,000 |
| 215907-99 | Drill | Amoco Production Company | Jul 21, 1983 | Sep 13, 1983 | — | 6,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-11991 | — | — | — | — |
| — | — O-9-18506 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,098 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,189 | 3,203 | Perforated |
| 3,207 | 3,210 | Perforated |
| 3,219 | 3,223 | Perforated |
| 5,415 | 5,430 | Perforated |
| 5,430 | 5,440 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 530 | 12.25 | 600 S |
| 5.5 | 5,493 | 7.875 | 1,505 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 | Jul 15, 2014 | Mar 21, 2014 | — |
| 00 | Nov 21, 1990 | Oct 17, 1990 | — |
| 00 | Sep 5, 1986 | Feb 23, 1984 | — |
| 00 | Sep 4, 1986 | — | — |
| 00 | Apr 6, 1984 | Feb 23, 1984 | — |
| 00 | Mar 1, 1984 | Feb 23, 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 42-451-31278 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-451-31278 → 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/45131278, documented in the API reference.