WELL · 42-357-31678 · DISTRICT 10
Harbaugh #21
Ochiltree County · Pan Petro (Marmaton) field · Vertical
Harbaugh #21 (API 42-357-31678) is a plugged well in Ochiltree County, plugged February 11, 2014, last operated by Courson Oil & Gas Inc..
The RRC has issued one drilling permit, issued January 17, 1985, permitted to 9,000 ft.
It was permitted by Alpar Resources, Inc. and has since transferred to Courson Oil & Gas Inc. on the wellbore schedule.
Completion filings report 6 formation tops, including Brown Dolomite, B/Heebner, Kansas City, Des Moines.
Its 2 leases have reported 428K barrels of oil and 872K mcf of gas since January 1993, last reporting in July 2026. The leases carry 5 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Alpar Resources, Inc.; the EWA schedule now lists a different operator.
- Based in
- Perryton, TX
- P-5 status
- Active (A)
- P-5 last filed
- Feb 20, 2026
- Permits on file
- 291
- Phone
- (806) 435-2910
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Courson Oil & Gas Inc. |
| Production reports | Chesapeake Operating, Inc.through Oct 2014 |
| Latest permit | Alpar Resources, Inc.Jan 17, 1985 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,000
- total depth, ft
- 1
- permits on file
- Jan 17, 1985
- last permit issued
- Feb 26, 1985
- completed
- 428K
- cumulative oil, bbl
- 872K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Feb 26, 1985
- Shut in
- —
- Plugged
- Feb 11, 2014
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 5 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Harbaugh O-14-9065 | Pan Petro (Marmaton) | Courson Oil & Gas, Inc. | 2 | 2 | 0 | Apr 2014 – Jul 2026 |
| Harbaugh O-14-5635 | Hodges (Des Moines) | Chesapeake Operating, L.L.C. | 3 | 428K | 872K | Jan 1993 – Dec 2014 |
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.
- 1Plains Petroleum Operating Co.Jan 1993 → Aug 1999
- 2Sapient Energy CorpSep 1999 → Jan 2002
- 3Chesapeake Operating, Inc.Feb 2002 → Oct 2014
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 264485-99 | Drill | Alpar Resources, Inc. | Jan 17, 1985 | Jan 17, 1985 | Jan 24, 1985 | 9,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Feb 26, 1985 | Harbaugh O-14-9065 | Pan Petro (Marmaton) | Courson Oil & Gas Inc. | Plugged | — |
| Feb 26, 1985 | Harbaugh O-14-5635 | Hodges (Des Moines) | Chesapeake Operating L.L.C. | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,951 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Brown Dolomite | 3,558 | -607 |
| B/Heebner | 5,770 | -2,819 |
| Kansas City | 6,938 | -3,987 |
| Des Moines | 7,666 | -4,715 |
| 13 Finger Lime | 8,562 | -5,611 |
| MorrowMORROW SHALE | 8,658 | -5,707 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,732 | 7,744 | Perforated |
| 7,800 | 7,810 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,772 | 12.25 | 1,135 S |
| 5.5 | 8,935 | 7.875 | 300 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 | Oct 16, 2014 | Mar 19, 1985 | — |
| 00 | Apr 2, 1985 | Mar 19, 1985 | — |
| 00 | Mar 30, 1985 | — | — |
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 42-357-31678 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-357-31678 → 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/35731678, documented in the API reference.