TEXAS · WELLS · HOWARD COUNTY · MIDDLE KNOTT UNIT 21 LEASE · API 42-227-39014 · DISTRICT 7B
Middle Knott Unit 21 #4WA
Howard County · Spraberry (Trend Area) field · Producing · Horizontal
Middle Knott Unit 21 #4WA (API 42-227-39014) is a horizontal well in Howard County operated by Diamondback E&P LLC, completed October 22, 2017 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued February 21, 2017, permitted to 8,170 ft.
Completion filings report 10 formation tops, including Yates, Seven Rivers, San Andres, Glorieta.
Its lease has reported 2.38M barrels of oil and 9.42M mcf of gas since October 2017, last reporting volume in April 2026. The lease carries 9 wells, so these are lease totals, not this well alone.
Operator of record
- Based in
- Midland, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- May 4, 2026
- Permits on file
- 5,251
- Phone
- (432) 221-7400
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 | Diamondback E&P LLCFeb 21, 2017 |
- 8,170
- total depth, ft
- 1
- permits on file
- Feb 21, 2017
- last permit issued
- Oct 22, 2017
- completed
- 2.38M
- cumulative oil, bbl
- 9.42M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 2017 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 22, 2017
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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 9 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Middle Knott Unit 21 O-10-49351 | Spraberry (Trend Area) | Diamondback E&P LLC | 9 | 2.38M | 9.42M | Oct 2017 – Apr 2026 |
Gas, mcf lease total
Last 12 months 1,095,678 · prior 12 1,494,711(-27%)
Oil, barrels lease total
Last 12 months 36,718 · prior 12 77,490(-53%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Diamondback E&P LLCOct 2017 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 823151-99 | Drill | Diamondback E&P LLC | Feb 10, 2017 | Feb 21, 2017 | Mar 10, 2017 | 9,135 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Oct 22, 2017 | Middle Knott Unit 21 O-10-49351 | Spraberry (Trend Area) | Diamondback E&P LLC | Producing | 8,170 |
Formation tops
As filed on W-2/G-1. Subsea from 2,562 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 1,914 | 648 |
| Seven Rivers | 2,022 | 540 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 3,701 | -1,139 |
| Glorieta | 4,295 | -1,733 |
| Clear ForkCLEARFORK - SEVERE WATER FLOWS | 4,810 | -2,248 |
| Spraberry | 6,569 | -4,007 |
| Dean | 7,768 | -5,206 |
| Wolfcamp | 8,018 | -5,456 |
| Coleman Junction | — | — |
| Leonard | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,313 | 18,314 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 420 | 17.5 | 580 S |
| 9.625 | 7,659 | 12.25 | 805 S |
| 5.5 | 18,423 | 8.5 | 2,693 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Jul 13, 2018 | May 21, 2018 | Yes |
| 00 | Feb 14, 2018 | Dec 1, 2017 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Sep 23, 2021. Cement bond. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| Cement BondSpans Yates, Seven Rivers, San Andres, Glorieta, Clear Fork, Spraberry, Dean, Wolfcamp | TIFF | 0 to 8,388 | Sep 23, 2021 | 38.8 |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-227-39014 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-227-39014 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it.
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/22739014, documented in the API reference.