WELL · 42-451-31150 · DISTRICT 7
Halfman E. A. #1
Tom Green County · Halfman (Strawn) field · Vertical
Halfman E. A. #1 (API 42-451-31150) is a plugged well in Tom Green County, plugged April 11, 2023, last operated by Lavanco Energy Ltd..
The RRC has issued one drilling permit, issued January 27, 1983, permitted to 5,280 ft.
It was permitted by Diamark Energy Corp. and has since transferred to Lavanco Energy Ltd. on the wellbore schedule.
Its lease has reported 17.9K barrels of oil and 45.9K mcf of gas since January 1993, last reporting in June 2023.
Operator of record
Permitted by Diamark Energy Corp.; the EWA schedule now lists a different operator.
San Angelo, TX · P-5 Y, filed Nov 3, 2023 · 49 permits on file · (325) 277-0186
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Lavanco Energy Ltd. |
| Production reports | Lavanco Energy, Ltd.through Mar 2023 |
| Latest permit | Diamark Energy Corp.Jan 27, 1983 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,280
- total depth, ft
- 1
- permits on file
- Jan 27, 1983
- last permit issued
- Mar 7, 1983
- completed
- 17.9K
- cumulative oil, bbl
- 45.9K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jun 2023
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 7, 1983
- Shut in
- —
- Plugged
- Apr 11, 2023
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 |
|---|---|---|---|---|---|---|
| Halfman, E. A. O-9-10043 | Halfman (Strawn) | Lavanco Energy, Ltd. | 1 | 17.9K | 45.9K | Jan 1993 – Jun 2023 |
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.
- 1Merit Oil CompanyJan 1993 → May 1994
- 2Lavanco Energy, Inc.Jun 1994 → Feb 2006
- 3Lavanco Energy, Ltd.Mar 2006 → Mar 2023
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 184370-99 | Drill | Diamark Energy Corp. | Jan 27, 1983 | Jan 27, 1983 | Jan 6, 1983 | 5,280 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-10043 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,653 | 4,680 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 273 | 11 | 175 S |
| 2.375 | 4,696 | — | — |
| 4.5 | 5,280 | 7.875 | 625 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 12, 1984 | Mar 11, 1983 | — |
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 42-451-31150 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-451-31150 → 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/45131150, documented in the API reference.