WELL · 42-103-35663 · DISTRICT 8
Duke 31 #1
Crane County · Crossett West (Clear Fork Up.) field · Producing · Vertical
Duke 31 #1 (API 42-103-35663) is a well in Crane County operated by Kneupper Oil LLC, completed September 19, 2009 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued May 4, 2009, permitted to 4,000 ft.
It was permitted by Roca Operating, Inc. and has since transferred to Kneupper Oil LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Rustler, Tansill, Yates, Seven Rivers.
Its lease has reported 15.8K barrels of oil and 71.8K mcf of gas since September 2009, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Roca Operating, Inc.; the EWA schedule now lists a different operator.
Mc Camey, TX · P-5 Y, filed Oct 4, 2025 · (432) 208-8153
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Kneupper Oil LLC |
| Production reports | Kneupper Oil, LLCthrough Apr 2026 |
| Latest permit | Roca Operating, Inc.May 4, 2009 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,000
- total depth, ft
- 2
- permits on file
- May 4, 2009
- last permit issued
- Sep 19, 2009
- completed
- 15.8K
- cumulative oil, bbl
- 71.8K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2009 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 19, 2009
- 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; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Duke 31 O-10-39662 | Crossett, West (Clear Fork, Up.) | Kneupper Oil, LLC | 2 | 15.8K | 71.8K | Sep 2009 – Jul 2026 |
Oil, barrels lease total
Last 12 months 576 · prior 12 422(+36%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Roca Operating, Inc.Sep 2009 → May 2014
- 2Kneupper Oil, LLCJun 2014 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 680906-98 | Drill | Roca Operating, Inc. | Dec 15, 2009 | May 4, 2009 | May 26, 2009 | 4,000 |
| 680906-99 | Drill | Roca Operating, Inc. | May 1, 2009 | May 4, 2009 | May 26, 2009 | 4,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-39662 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,322 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Rustler | 650 | 1,672 |
| Tansill | 977 | 1,345 |
| Yates | 1,048 | 1,274 |
| Seven Rivers | 1,174 | 1,148 |
| Grayburg | 1,733 | 589 |
| San Andres | 2,035 | 287 |
| Glorieta | 2,649 | -327 |
| Clear ForkCLEARFORK | 2,795 | -473 |
| Upper Pay | 2,914 | -592 |
| Clear ForkMIDDLE CLEAR FORK | 3,137 | -815 |
| Tubb | 3,337 | -1,015 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,141 | 3,164 | Perforated |
| 3,196 | 3,319 | Perforated |
| 3,356 | 3,370 | Perforated |
| 3,386 | 3,389 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 414 | 11 | 110 S |
| 5.5 | 3,445 | 7.875 | 455 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 | Feb 24, 2010 | Oct 1, 2009 | Yes |
| 00 | Dec 21, 2009 | — | — |
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 42-103-35663 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-103-35663 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. 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/10335663, documented in the API reference.