WELL · 42-357-33535 · DISTRICT 10
Lamaster Brothers 66 #A 1HC
Ochiltree County · Pan Petro (Cleveland) field · Producing · Horizontal
Lamaster Brothers 66 #A 1HC (API 42-357-33535) is a horizontal well in Ochiltree County operated by Courson Oil & Gas Inc., completed February 3, 2015 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued November 7, 2014, permitted to 13,000 ft.
It was permitted by Midstates Petroleum Company LLC and has since transferred to Courson Oil & Gas Inc. on the wellbore schedule.
Completion filings report 10 formation tops, including Brown Dolomite, Council Grove, Douglas, Kansas City.
Its lease has reported 80.9K barrels of oil and 2.06M mcf of gas since August 2011, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Midstates Petroleum Company LLC; the EWA schedule now lists a different operator.
Perryton, TX · P-5 Y, filed Dec 4, 2025 · 291 permits on file · (806) 435-2910
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Courson Oil & Gas Inc. |
| Production reports | Courson Oil & Gas, Inc.through Apr 2026 |
| Latest permit | Midstates Petroleum Company LLCNov 7, 2014 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 13,000
- total depth, ft
- 2
- permits on file
- Nov 7, 2014
- last permit issued
- Feb 3, 2015
- completed
- 80.9K
- cumulative oil, bbl
- 2.06M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 2011 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 3, 2015
- 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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Lamaster Brothers 66 O-14-8734 | Pan Petro (Cleveland) | Courson Oil & Gas, Inc. | 2 | 80.9K | 2.06M | Aug 2011 – Jul 2026 |
Gas, mcf lease total
Last 12 months 54,557 · prior 12 61,905(-12%)
Oil, barrels lease total
Last 12 months 2,295 · prior 12 1,616(+42%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Midstates Petroleum Company LLCAug 2011 → Aug 2014
- 2Courson Oil & Gas, Inc.Sep 2014 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 799819-98 | Drill | Midstates Petroleum Company LLC | Nov 20, 2014 | Nov 7, 2014 | Nov 25, 2014 | 13,000 |
| 799819-99 | Drill | Midstates Petroleum Company LLC | Nov 6, 2014 | Nov 7, 2014 | Nov 25, 2014 | 13,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-14-8734 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,969 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Brown DolomiteBROWN DOLOMITE - PROD AND CORROS | 3,514 | -545 |
| Council Grove | 4,118 | -1,149 |
| Douglas | 5,745 | -2,776 |
| Kansas CityKANSAS CITY LIME | 6,828 | -3,859 |
| Cleveland | 7,015 | -4,046 |
| Chase Lower | — | — |
| Des MoinesDES MOINES - H2S CORROSIVE | — | — |
| MarmatonMARMATON (DES MOINES) | — | — |
| Oswego | — | — |
| Tonkawa | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,500 | 11,560 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 2,240 | 12.25 | 930 S |
| 7 | 7,430 | 8.75 | 570 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 27, 2015 | Mar 30, 2015 | Yes |
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 42-357-33535 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-357-33535 → 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/35733535, documented in the API reference.