TEXAS · WELLS · WASHINGTON COUNTY · HEIDEMANN UNIT LEASE · API 42-477-30789 · DISTRICT 03
Heidemann Unit #1
Washington County · Giddings (Austin Chalk Gas) field · Horizontal
Heidemann Unit #1 (API 42-477-30789) is a plugged horizontal well in Washington County, plugged May 19, 2023, last operated by Ineos USA Oil & Gas LLC.
The RRC has issued one drilling permit (amended once), issued May 22, 1995, permitted to 14,500 ft.
It was permitted by Union Pacific Resources Company and has since transferred to Ineos USA Oil & Gas LLC on the wellbore schedule.
Completion filings report 4 formation tops, including Midway, Navarro, Taylor, Austin Chalk.
Its lease has reported 36 barrels of oil and 6.4M mcf of gas since February 1996, with no volume in the three years through April 2026.
Operator of record
Permitted by Union Pacific Resources Company; the EWA schedule now lists a different operator.
- Based in
- Denver, CO
- P-5 status
- Active – Extension (X)
- P-5 last filed
- May 26, 2026
- Permits on file
- 98
- Phone
- (720) 764-3473
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Ineos USA Oil & Gas LLC |
| Production reports | Ineos USA Oil & Gas LLCthrough Jul 2003 |
| Latest permit | Union Pacific Resources CompanyMay 22, 1995 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 14,500
- total depth, ft
- 2
- permits on file
- May 22, 1995
- last permit issued
- Feb 19, 1996
- completed
- 36
- cumulative oil, bbl
- 6.4M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 1996 THROUGH Jul 2003
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Feb 19, 1996
- Shut in
- —
- Plugged
- May 19, 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 |
|---|---|---|---|---|---|---|
| Heidemann Unit G-3-157913 | Giddings (Austin Chalk, Gas) | Ineos USA Oil & Gas LLC | 1 | 36 | 6.4M | Feb 1996 – Jul 2003 |
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.
- 1Union Pacific Resources CompanyFeb 1996 → Jan 2001
- 2Rme Petroleum CompanyFeb 2001 → Nov 2002
- 3Anadarko E&P Company LPDec 2002 → Feb 2003
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 435961-98 | Drill | Union Pacific Resources Company | Feb 26, 1996 | May 22, 1995 | — | 14,500 |
| 435961-99 | Drill | Union Pacific Resources Company | May 17, 1995 | May 22, 1995 | Nov 17, 1995 | 14,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Feb 19, 1996 | Heidemann Unit G-3-157913 | Giddings (Austin Chalk Gas) | Ineos USA Oil & Gas LLC | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 350 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Midway | 9,910 | -9,560 |
| Navarro | 10,880 | -10,530 |
| Taylor | 11,560 | -11,210 |
| Austin Chalk | 13,805 | -13,455 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 13,822 | 15,630 | Perforated |
| 13,847 | 15,544 | Perforated |
| 14,469 | 16,605 | Perforated |
| 15,220 | 17,245 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 3,512 | 14.75 | 1,390 S |
| 7.625 | 13,822 | 9.875 | 550 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Jun 3, 1996 | Mar 4, 1996 | Yes |
| 00 | May 22, 1996 | — | — |
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 42-477-30789 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-477-30789 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it.
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/47730789, documented in the API reference.