TEXAS · WELLS · GARZA COUNTY · API 42-169-33042 · DISTRICT 7B
John Unit Waterflood #1
Garza County · Happy (Spraberry Lime) field · Vertical
John Unit Waterflood #1 (API 42-169-33042) is a plugged well in Garza County, plugged December 16, 2008, last operated by Cml Exploration LLC.
The RRC has issued one drilling permit, issued March 20, 1991, permitted to 5,200 ft.
It was permitted by Patterson Petroleum, Inc. and has since transferred to Cml Exploration LLC on the wellbore schedule.
Completion filings report 6 formation tops, including Yates, Grayburg, San Andres, Glorieta.
Its 2 leases have reported 6.4M barrels of oil and 972K mcf of gas since January 1993, last reporting in July 2026. The leases carry 29 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Patterson Petroleum, Inc.; the EWA schedule now lists a different operator.
- Based in
- Austin, TX
- P-5 status
- Active (A)
- P-5 last filed
- Oct 20, 2025
- Permits on file
- 514
- Phone
- (512) 328-8085
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | CML Exploration LLC |
| Production reports | CML Exploration, LLCthrough Apr 2026 |
| Latest permit | Patterson Petroleum, Inc.Mar 20, 1991 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,200
- total depth, ft
- 1
- permits on file
- Mar 20, 1991
- last permit issued
- Oct 23, 1991
- completed
- 6.4M
- cumulative oil, bbl
- 972K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Oct 23, 1991
- Shut in
- —
- Plugged
- Dec 16, 2008
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 29 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| John Unit Waterflood O-11-68117 | Happy (Spraberry Lime) | CML Exploration, LLC | 27 | 6.15M | 918K | Sep 1999 – Jul 2026 |
| Lott Trust O-11-66761 | Happy (Spraberry Lime) | Patterson Petroleum, Inc. | 2 | 254K | 54.8K | Jan 1993 – Nov 1999 |
Oil, barrels lease total
Last 12 months 57,974 · prior 12 65,783(-12%)
Gas, mcf lease total
Last 12 months 3,884 · prior 12 7,966(-51%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Patterson Petroleum, Inc.Jan 1993 → Feb 2000
- 2Patterson Petroleum LPMar 2000 → Jul 2007
- 3Patterson Petroleum LLCAug 2007 → Oct 2007
- 4CML Exploration, LLCNov 2007 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 385889-99 | Drill | Patterson Petroleum, Inc. | Mar 19, 1991 | Mar 20, 1991 | Oct 6, 1991 | 5,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Oct 23, 1991 | John Unit Waterflood O-11-68117 | Happy (Spraberry Lime) | CML Exploration LLC | Plugged | — |
| Oct 23, 1991 | Lott Trust O-11-66761 | Happy (Spraberry Lime) | Patterson Petroleum Inc. | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,377 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 1,232 | 1,145 |
| Grayburg | 2,225 | 152 |
| San Andres | 2,395 | -18 |
| GlorietaGLORIETTA | 3,520 | -1,143 |
| Clear ForkCLEARFORK | 3,680 | -1,303 |
| Spraberry | 4,875 | -2,498 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,935 | 4,978 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 118 | 17.5 | 125 S |
| 8.625 | 2,597 | 11 | 350 S |
| 5.5 | 5,100 | 7.875 | 575 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 | Sep 7, 1999 | Oct 30, 1991 | Yes |
| 00 | Nov 25, 1991 | Oct 30, 1991 | Yes |
| 00 | Nov 18, 1991 | — | — |
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 42-169-33042 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-169-33042 → 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/16933042, documented in the API reference.