TEXAS · WELLS · BURLESON COUNTY · API 42-051-31898 · DISTRICT 03
Machann West Unit #1
Burleson County · Giddings (Austin Chalk-3) field · Shut In · Vertical
Machann West Unit #1 (API 42-051-31898) is a well in Burleson County operated by Wildfire Energy Operating LLC, completed November 4, 1982 and listed as shut in on the RRC schedule, shut in August 1, 2019.
The RRC has issued one drilling permit, issued October 15, 1981, permitted to 8,750 ft.
It was permitted by Williams, Clayton W., JR. and has since transferred to Wildfire Energy Operating LLC on the wellbore schedule.
Completion filings report 5 formation tops, including Austin Chalk, Eagle Ford, Buda, Del Rio.
Its 4 leases have reported 101K barrels of oil and 1.46M mcf of gas since January 1993, last reporting in July 2026. The leases carry 8 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Williams, Clayton W., Jr.; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Nov 24, 2025
- Permits on file
- 171
- Phone
- (832) 558-0100
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Wildfire Energy Operating LLC |
| Production reports | Chesapeake Operating, L.L.C.through Dec 2022 |
| Latest permit | Williams, Clayton W., Jr.Oct 15, 1981 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,750
- total depth, ft
- 1
- permits on file
- Oct 15, 1981
- last permit issued
- Nov 4, 1982
- completed
- 101K
- cumulative oil, bbl
- 1.46M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 4, 1982
- Shut in
- Aug 1, 2019
- 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 4 leases this well is completed on; they carry 8 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Machann West Unit O-3-23969 | Giddings (Austin Chalk-3) | Wildfire Energy Operating LLC | 5 | 89.8K | 1.26M | Apr 2001 – Jul 2026 |
| Joseph Matcek Unit O-3-23782 | Giddings (Austin Chalk-3) | Williams, Clayton Energy, Inc. | 1 | 1.09K | 18.4K | Feb 2000 – Jul 2001 |
| Matcek, Joseph Unit G-3-175820 | Giddings (Austin Chalk, Gas) | Williams, Clayton Energy, Inc. | 1 | 0 | 4.24K | Nov 1999 – May 2000 |
| Matcek, Joseph Unit O-3-15312 | Giddings (Austin Chalk-3) | Williams, Clayton Energy, Inc. | 1 | 9.79K | 178K | Jan 1993 – May 2000 |
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.
- 1Williams, Clayton W., Jr., Inc.Jan 1993 → Apr 1993
- 2Williams, Clayton Energy, L.L.CMay 1993 → May 1993
- 3Williams, Clayton Energy, Inc.Jun 1993 → Nov 2016
- 4Wildhorse Resources Mngt Co, LLCDec 2016 → May 2019
- 5Chesapeake Operating, L.L.C.Jun 2019 → Aug 2022
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 138156-99 | Drill | Williams, Clayton W., Jr. | Oct 15, 1981 | Oct 15, 1981 | — | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Nov 4, 1982 | Machann West Unit O-3-23969 | Giddings (Austin Chalk-3) | Wildfire Energy Operating LLC | Shut In · shut in Aug 1, 2019 | 8,750 |
| Nov 4, 1982 | Matcek Joseph Unit G-3-175820 | Giddings (Austin Chalk Gas) | Williams Clayton Energy Inc. | Not on Schedule | — |
| Nov 4, 1982 | Joseph Matcek Unit O-3-23782 | Giddings (Austin Chalk-3) | Williams Clayton Energy Inc. | Not on Schedule | — |
| Nov 4, 1982 | Matcek Joseph Unit O-3-15312 | Giddings (Austin Chalk-3) | Williams Clayton Energy Inc. | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 331 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Austin Chalk | 7,920 | -7,589 |
| Eagle FordEAGLEFORD | 8,135 | -7,804 |
| Buda | 8,485 | -8,154 |
| Del Rio | 8,496 | -8,165 |
| Georgetown | 8,520 | -8,189 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,959 | 8,130 | Perforated |
| 8,470 | 8,494 | Perforated |
| 8,522 | 8,606 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 3,940 | 12.25 | 1,650 S |
| 5.5 | 8,750 | 7.875 | 650 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 | Apr 6, 2001 | Mar 8, 2000 | — |
| 00 | Mar 30, 2000 | Mar 8, 2000 | — |
| 00 | Mar 22, 2000 | — | — |
| 00 | Mar 17, 2000 | Dec 15, 1999 | — |
| 00 | Mar 2, 2000 | — | — |
| 00 | Jan 15, 1984 | Apr 18, 1983 | — |
| 00 | Jan 12, 1984 | Feb 16, 1982 | — |
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 42-051-31898 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-051-31898 → 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/05131898, documented in the API reference.