WELL · 42-371-32452 · DISTRICT 8
Chalkley A #1
Pecos County · Lehn-Apco South (Ellen) field · Shut IN · Vertical
Chalkley A #1 (API 42-371-32452) is a well in Pecos County operated by Olsen Energy Inc., completed March 19, 1978 and listed as shut in on the RRC schedule.
The RRC has issued one drilling permit, issued December 30, 1977, permitted to 4,750 ft.
It was permitted by Lovelady, I. W. and has since transferred to Olsen Energy Inc. on the wellbore schedule.
Completion filings report 5 formation tops, including Rustler, Yates, Queen, Wichita-Albany.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Lovelady, I. W.; the EWA schedule now lists a different operator.
- Based in
- Boerne, TX
- P-5 status
- Active (A)
- P-5 last filed
- May 26, 2026
- Permits on file
- 243
- Phone
- (210) 496-2466
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Olsen Energy Inc. |
| Production reports | Olsen Energy Inc.through Jan 2025 |
| Latest permit | Lovelady, I. W.Dec 30, 1977 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,750
- total depth, ft
- 1
- permits on file
- Dec 30, 1977
- last permit issued
- Mar 19, 1978
- completed
- 0
- cumulative oil, bbl
- 678K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Mar 19, 1978
- 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 2 leases this well is completed on; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Chalkley "A" G-10-76404 | Lehn-Apco, S. (Wichita-Albany) | Olsen Energy Inc. | 1 | 0 | 678K | Jan 1993 – Jul 2026 |
| Chalkley "A" O-10-24956 | Lehn-Apco, South (Ellen) | Olsen Energy Inc. | 1 | 0 | 0 | Jan 1993 – Jul 2026 |
Gas, mcf lease total
Last 12 months 0 · prior 12 507(-100%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Pedco Resources CompanyJan 1993 → Jan 1995
- 2MBR Resources, Inc.Feb 1995 → Mar 2006
- 3Unit Petroleum CompanyApr 2006 → Jan 2016
- 4Olsen Energy Inc.Feb 2016 → Jan 2025
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 15209-99 | Drill | Lovelady, I. W. | Dec 30, 1977 | Dec 30, 1977 | — | 4,750 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-10-76404 | — | — | — | — |
| — | — O-10-24956 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,469 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Rustler | 300 | 2,169 |
| Yates | 760 | 1,709 |
| Queen | 1,484 | 985 |
| Wichita-Albany | 4,150 | -1,681 |
| EllenburgerELLENBERGER | 4,732 | -2,263 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,378 | 4,555 | Perforated |
| — | 4,749 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 421 | 17.5 | 500 S |
| 2.375 | 4,329 | — | — |
| 5.5 | 4,735 | 11 | 500 S |
| 5.5 | 4,735 | 15.5 | 1,500 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 19, 1991 | May 14, 1991 | — |
| 00 | Jan 12, 1984 | May 15, 1978 | — |
| 00 | Jan 12, 1984 | Mar 29, 1978 | — |
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 42-371-32452 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-371-32452 → 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.
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/37132452, documented in the API reference.