TEXAS · WELLS · MIDLAND COUNTY · KEMMER LEASE · API 42-329-40307 · DISTRICT 7B
Kemmer #4219H
Midland County · Spraberry (Trend Area) field · Producing · Horizontal
Kemmer #4219H (API 42-329-40307) is a horizontal well in Midland County operated by Diamondback E&P LLC, completed November 14, 2016 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued June 12, 2015, permitted to 9,555 ft.
It was permitted by Rsp Permian, LLC and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Completion filings report 9 formation tops, including Santa Rosa, Yates, Seven Rivers, Queen.
Its lease has reported 2.28M barrels of oil and 3.65M mcf of gas since April 2011, last reporting volume in April 2026. The lease carries 17 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by RSP Permian, LLC; the EWA schedule now lists a different operator.
- 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 | RSP Permian, LLCJun 12, 2015 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,555
- total depth, ft
- 1
- permits on file
- Jun 12, 2015
- last permit issued
- Nov 14, 2016
- completed
- 2.28M
- cumulative oil, bbl
- 3.65M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Apr 2011 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 14, 2016
- 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 17 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Kemmer O-10-41025 | Spraberry (Trend Area) | Diamondback E&P LLC | 17 | 2.28M | 3.65M | Apr 2011 – Apr 2026 |
Oil, barrels lease total
Last 12 months 45,327 · prior 12 54,067(-16%)
Gas, mcf lease total
Last 12 months 103,796 · prior 12 168,018(-38%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1RSP Permian, LLCApr 2011 → Jul 2018
- 2COG Operating LLCAug 2018 → May 2024
- 3Diamondback E&P LLCJun 2024 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 807385-99 | Drill | RSP Permian, LLC | Jun 11, 2015 | Jun 12, 2015 | May 12, 2016 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Nov 14, 2016 | Kemmer O-10-41025 | Spraberry (Trend Area) | Diamondback E&P LLC | Producing | 9,555 |
Formation tops
As filed on W-2/G-1. Subsea from 2,906 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa Rosa | 1,000 | 1,906 |
| Yates | 2,965 | -59 |
| Seven Rivers | 3,167 | -261 |
| Queen | 4,108 | -1,202 |
| Grayburg | 4,605 | -1,699 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 4,841 | -1,935 |
| Clear ForkCLEARFORK | 7,380 | -4,474 |
| Spraberry | 8,168 | -5,262 |
| SpraberrySPRABERRY UPPER-DEAN | 9,012 | -6,106 |
| Glorieta | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,993 | 14,953 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,522 | 17.5 | 1,025 S |
| 9.625 | 8,702 | 12.25 | 590 S |
| 5.5 | 15,047 | 8.5 | 1,655 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 | Feb 2, 2024 | Nov 15, 2023 | — |
| 00 | Apr 13, 2017 | Dec 7, 2016 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received May 10, 2017. Neutron. 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 |
|---|---|---|---|---|
| NEUTRON POROSITYSpans Santa Rosa, Yates, Seven Rivers, Queen, Grayburg, San Andres, Clear Fork, Spraberry | TIFF | 0 to 9,757 | May 10, 2017run Aug 26, 2016 | 0.10 |
"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 42-329-40307 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-329-40307 → 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/32940307, documented in the API reference.