WELL · 42-169-33601 · DISTRICT 8
John Unit Waterflood #21S
Garza County · Happy (Spraberry Lime) field · Injection · Directional · Sidetrack
John Unit Waterflood #21S (API 42-169-33601) is a well in Garza County operated by Cml Exploration LLC, completed August 22, 2000 and listed as injection on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued July 27, 2000, permitted to 5,210 ft.
It was permitted by Patterson Petroleum, Inc. and has since transferred to Cml Exploration LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Yates, San Andres, Spraberry.
Its lease has reported 6.15M barrels of oil and 918K mcf of gas since September 1999, last reporting in July 2026. The lease carries 27 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 168K barrels injected in the 12 months reported through May 2026.
Operator of record
Permitted by Patterson Petroleum, Inc.; the EWA schedule now lists a different operator.
Austin, TX · P-5 Y, filed Jul 4, 2026 · 514 permits on file · (800) 460-6313
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.Jul 27, 2000 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,210
- total depth, ft
- 2
- permits on file
- Jul 27, 2000
- last permit issued
- Aug 22, 2000
- completed
- 6.15M
- cumulative oil, bbl
- 918K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 1999 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 22, 2000
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
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; they carry 27 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 |
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.Sep 1999 → 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 |
|---|---|---|---|---|---|---|
| 497737-98 | Drill · sidetrack | Patterson Petroleum, Inc. | Aug 22, 2000 | Jul 27, 2000 | — | 5,210 |
| 497737-99 | Drill | Patterson Petroleum, Inc. | Jul 27, 2000 | Jul 27, 2000 | Aug 3, 2000 | 5,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-11-68117 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,402 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 1,330 | 1,072 |
| San Andres | 2,595 | -193 |
| Spraberry | 5,020 | -2,618 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,020 | 5,046 | Perforated |
| 5,050 | 5,060 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 12.75 | 189 | 17.5 | 160 S |
| 8.625 | 3,530 | 11 | 800 S |
| 5.5 | 5,210 | 7.875 | 400 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 | Jun 4, 2001 | Jan 3, 2001 | Yes |
| 00 | Mar 6, 2001 | — | — |
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 42-169-33601 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-169-33601 → 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.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 168K
- bbl, last 12 reported months
- 3.96M
- bbl, all reported
- May 2026
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000089368 | H-1 Injection | Active | 1,500 | 2,435 | 4,870–5,060 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 167,834 · prior 12 142,578(+18%)
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/16933601, documented in the API reference.