WELL · 42-161-33718 · DISTRICT 5
Richardson Letha M. #4
Freestone County · Mann North (Cotton Valley Sd.) field · Producing · Vertical
Richardson Letha M. #4 (API 42-161-33718) is a well in Freestone County operated by AP Operating Inc., completed February 14, 2007 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued October 6, 2006, permitted to 9,900 ft.
It was permitted by Lacy Operations, Ltd. and has since transferred to AP Operating Inc. on the wellbore schedule.
Completion filings report 6 formation tops, including B/Austin Chalk, Buda, Glen Rose, Rodessa.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Lacy Operations, Ltd.; the EWA schedule now lists a different operator.
Richardson, TX · P-5 Y, filed Jul 4, 2026 · 3 permits on file · (972) 342-7791
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | AP Operating Inc. |
| Production reports | AP Operating, Inc.through Feb 2026 |
| Latest permit | Lacy Operations, Ltd.Oct 6, 2006 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,900
- total depth, ft
- 1
- permits on file
- Oct 6, 2006
- last permit issued
- Feb 14, 2007
- completed
- 0
- cumulative oil, bbl
- 753K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 2007 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 14, 2007
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
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 |
|---|---|---|---|---|---|---|
| Richardson, Letha M. G-5-226516 | Mann, North (Cotton Valley Sd.) | AP Operating, Inc. | 1 | 0 | 753K | Feb 2007 – Jul 2026 |
Gas, mcf lease total
Last 12 months 3,343 · prior 12 5,154(-35%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Lacy Operations, Ltd.Feb 2007 → Dec 2010
- 2R. Lacy Services, Ltd.Jan 2011 → Mar 2018
- 3Downs Operating Company, LLCApr 2018 → May 2020
- 4AP Operating, Inc.Jun 2020 → Feb 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 625081-99 | Drill | Lacy Operations, Ltd. | Aug 28, 2006 | Oct 6, 2006 | Dec 19, 2006 | 9,900 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-5-226516 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 458 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| B/Austin Chalk | 3,378 | -2,920 |
| Buda | 4,172 | -3,714 |
| Glen RoseGLEN ROSE-TEX | 5,360 | -4,902 |
| Rodessa | 6,420 | -5,962 |
| Travis Peak | 7,102 | -6,644 |
| Cotton Valley | 8,842 | -8,384 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,943 | 9,110 | Perforated |
| 9,216 | 9,335 | Perforated |
| 9,424 | 9,588 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 750 | 12.25 | 350 S |
| 4.5 | 9,813 | 7.875 | 1,900 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 | May 29, 2007 | Mar 6, 2007 | Yes |
| 00 | May 8, 2007 | — | — |
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 42-161-33718 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-161-33718 → 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/16133718, documented in the API reference.