TEXAS · WELLS · WASHINGTON COUNTY · KLUSSMANN UNIT LEASE · API 42-477-30770 · DISTRICT 03
Klussmann Unit #1
Washington County · Giddings (Austin Chalk Gas) field · Horizontal
Klussmann Unit #1 (API 42-477-30770) is a plugged horizontal well in Washington County, plugged July 19, 2012, last operated by Enervest Operating L.L.C..
The RRC has issued one drilling permit (amended once), issued January 4, 1995, permitted to 14,100 ft.
It was permitted by Union Pacific Resources Company and has since transferred to Enervest Operating L.L.C. on the wellbore schedule.
Completion filings report one formation top, including Austin Chalk.
Operator of record
Permitted by Union Pacific Resources Company; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jan 13, 2026
- Permits on file
- 1,249
- Phone
- (713) 659-3500
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Enervest Operating L.L.C. |
| Production reports | Enervest Operating, L.L.C.through Mar 2010 |
| Latest permit | Union Pacific Resources CompanyJan 4, 1995 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 14,100
- total depth, ft
- 2
- permits on file
- Jan 4, 1995
- last permit issued
- Apr 1, 1995
- completed
- 0
- cumulative oil, bbl
- 578K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Apr 1995 THROUGH Jul 2012
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 1, 1995
- Shut in
- —
- Plugged
- Jul 19, 2012
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 |
|---|---|---|---|---|---|---|
| Klussmann Unit G-3-154653 | Giddings (Austin Chalk, Gas) | Enervest Operating, L.L.C. | 1 | 0 | 578K | Apr 1995 – Jul 2012 |
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 CompanyMay 1995 → Sep 1999
- 2Anadarko E&P Company LPFeb 2004 → Jul 2007
- 3Enervest Operating, L.L.C.Sep 2007 → Mar 2010
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 431544-98 | Drill | Union Pacific Resources Company | Jun 30, 1995 | Jan 4, 1995 | — | 14,100 |
| 431544-99 | Drill | Union Pacific Resources Company | Jan 4, 1995 | Jan 4, 1995 | Feb 11, 1995 | 14,100 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Apr 1, 1995 | Klussmann Unit G-3-154653 | Giddings (Austin Chalk Gas) | Enervest Operating L.L.C. | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 338 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Austin Chalk | 12,896 | -12,558 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 12,946 | 18,790 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 3,505 | 14.75 | 1,887 S |
| 7.625 | 12,946 | 9.875 | 749 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 31, 1995 | May 31, 1995 | Yes |
| 00 | Jul 13, 1995 | — | — |
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 42-477-30770 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-477-30770 → 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/47730770, documented in the API reference.