WELL · 42-317-42146 · DISTRICT 8
Knox #101
Martin County · Spraberry (Trend Area) R 40 Exc field · Producing · Horizontal
Knox #101 (API 42-317-42146) is a horizontal well in Martin County operated by Diamondback E&P LLC, completed September 26, 2019 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued April 8, 2019, permitted to 10,605 ft.
It was permitted by Lario Oil & Gas Company and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Santa Rosa, Yates, Queen, Grayburg.
Its lease has reported 449K barrels of oil and 968K mcf of gas since September 2019, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Lario Oil & Gas Company; the EWA schedule now lists a different operator.
Midland, TX · P-5 Y, filed Mar 4, 2026 · 5,237 permits on file · (855) 247-5920
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Diamondback E&P LLC |
| Production reports | Diamondback E&P LLCthrough Apr 2026 |
| Latest permit | Lario Oil & Gas CompanyApr 8, 2019 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,605
- total depth, ft
- 2
- permits on file
- Apr 8, 2019
- last permit issued
- Sep 26, 2019
- completed
- 449K
- cumulative oil, bbl
- 968K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2019 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 26, 2019
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
32.113541, -101.791515
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Martin County.
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 |
|---|---|---|---|---|---|---|
| Knox O-10-54327 | Spraberry (Trend Area) R 40 Exc | Diamondback E&P LLC | 2 | 449K | 968K | Sep 2019 – Jul 2026 |
Oil, barrels lease total
Last 12 months 24,537 · prior 12 32,815(-25%)
Gas, mcf lease total
Last 12 months 174,980 · prior 12 174,145(+0%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Lario Oil & Gas CompanySep 2019 → Feb 2023
- 2Diamondback E&P LLCMar 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 850164-97 | Drill | Lario Oil & Gas Company | Nov 8, 2021 | Apr 8, 2019 | Jun 18, 2019 | 10,605 |
| 850164-99 | Drill | Lario Oil & Gas Company | Feb 19, 2019 | Apr 8, 2019 | Jun 18, 2019 | 10,605 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-54327 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,669 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa Rosa | 976 | 1,693 |
| Yates | 2,288 | 381 |
| Queen | 3,206 | -537 |
| Grayburg | 3,978 | -1,309 |
| San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H | 4,091 | -1,422 |
| Spraberry | 7,056 | -4,387 |
| Dean | 8,364 | -5,695 |
| Wolfcamp | 8,552 | -5,883 |
| Cisco | — | — |
| Pennsylvanian | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,339 | 16,905 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,355 | 17.5 | 1,180 S |
| 9.625 | 8,370 | 12.25 | 745 S |
| 5.5 | 16,959 | 8.5 | 2,584 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 | Aug 20, 2020 | Jun 16, 2020 | 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 42-317-42146 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-42146 → 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.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
Knox 342-317-42555
0.0 KM · Lario Oil & Gas Company · Section with this well →
| Santa Rosa | 994 | 1,675 |
| Yates | 2,283 | 386 |
| Queen | 3,201 | -532 |
| Grayburg | 3,971 | -1,302 |
| San Andres | 4,089 | -1,420 |
| Spraberry | 7,056 | -4,387 |
| Dean | 8,379 | -5,710 |
| Wolfcamp | 8,564 | -5,895 |
10 TOPS · FIRST 8
Knox 242-317-42556
0.0 KM · Lario Oil & Gas Company · Section with this well →
| Santa Rosa | 994 | 1,675 |
| Yates | 2,282 | 387 |
| Queen | 3,201 | -532 |
| Grayburg | 3,969 | -1,300 |
| San Andres | 4,082 | -1,413 |
| Spraberry | 7,049 | -4,380 |
| Dean | 8,367 | -5,698 |
| Wolfcamp | 8,558 | -5,889 |
10 TOPS · FIRST 8
Knox 242-317-42794
0.0 KM · Lario Oil & Gas Company · Section with this well →
| Santa Rosa | 994 | 1,674 |
| Yates | 2,268 | 400 |
| Queen | 3,229 | -561 |
| Grayburg | 3,816 | -1,148 |
| San Andres | 3,967 | -1,299 |
| San Andres | 3,967 | -1,299 |
| Spraberry | 7,047 | -4,379 |
| Cisco | — |
11 TOPS · FIRST 8
Knox42-317-42795
0.0 KM · Lario Oil & Gas Company · Section with this well →
| Santa Rosa | 988 | 1,680 |
| Yates | 2,280 | 388 |
| Queen | 3,226 | -558 |
| Grayburg | 3,811 | -1,143 |
| San Andres | 3,963 | -1,295 |
| Spraberry | 7,042 | -4,374 |
| Dean | 8,377 | -5,709 |
| Wolfcamp | 8,563 | -5,895 |
10 TOPS · FIRST 8
Knox 242-317-43262
0.0 KM · Lario Oil & Gas Company · Section with this well →
| Santa Rosa | 994 | 1,674 |
| Yates | 2,281 | 387 |
| Queen | 3,229 | -561 |
| Grayburg | 3,815 | -1,147 |
| San Andres | 3,956 | -1,288 |
| Spraberry | 7,058 | -4,390 |
| Dean | 8,370 | -5,702 |
| Wolfcamp | 8,565 | -5,897 |
10 TOPS · FIRST 8
Washington 542-317-44443
0.1 KM · Lario Oil & Gas Company · Section with this well →
| Yates | 2,282 | 387 |
| Queen | 2,871 | -202 |
| Grayburg | 3,325 | -656 |
| San Andres | 3,721 | -1,052 |
| Clear Fork | 6,059 | -3,390 |
| Spraberry | 7,059 | -4,390 |
| Cisco | — | |
| Dean | — |
10 TOPS · FIRST 8
Washington 442-317-44444
0.1 KM · Lario Oil & Gas Company · Section with this well →
| Yates | 2,283 | 386 |
| Queen | 2,874 | -205 |
| Grayburg | 3,321 | -652 |
| San Andres | 3,713 | -1,044 |
| Clear Fork | 6,054 | -3,385 |
| Spraberry | 7,053 | -4,384 |
| Cisco | — | |
| Wolfcamp | — |
10 TOPS · FIRST 8
Washington 542-317-43016
0.1 KM · Lario Oil & Gas Company · Section with this well →
| Santa Rosa | 974 | 1,693 |
| Yates | 2,273 | 394 |
| Queen | 3,228 | -561 |
| Grayburg | 3,872 | -1,205 |
| San Andres | 4,080 | -1,413 |
| Spraberry | 7,063 | -4,396 |
| Dean | 8,372 | -5,705 |
| Wolfcamp | 8,560 | -5,893 |
10 TOPS · FIRST 8
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/31742146, documented in the API reference.