WELL · 42-389-40251 · DISTRICT 8
Caspian 19-3 D #4TO
Reeves County · Hoefs T-K (Wolfcamp) field · Producing · Horizontal
Caspian 19-3 D #4TO (API 42-389-40251) is a horizontal well in Reeves County operated by Diamondback E&P LLC, completed March 10, 2023 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued October 6, 2022, permitted to 13,000 ft.
Completion filings report 8 formation tops, including Lamar, Bell Canyon, Cherry Canyon, Bone Spring.
Its lease has reported 149K barrels of oil and 1.76M mcf of gas since January 2023, last reporting in July 2026.
Operator of record
Midland, TX · P-5 Y, filed Mar 4, 2026 · 5,231 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 | Diamondback E&P LLCOct 6, 2022 |
- 13,000
- total depth, ft
- 1
- permits on file
- Oct 6, 2022
- last permit issued
- Mar 10, 2023
- completed
- 149K
- cumulative oil, bbl
- 1.76M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 2023 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Mar 10, 2023
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
31.338705, -103.164542
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Reeves 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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Caspian 19-3 D O-10-58491 | Hoefs T-K (Wolfcamp) | Diamondback E&P LLC | 1 | 149K | 1.76M | Jan 2023 – Jul 2026 |
Gas, mcf lease total
Last 12 months 330,412 · prior 12 396,824(-17%)
Oil, barrels lease total
Last 12 months 17,758 · prior 12 30,716(-42%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Diamondback E&P LLCMar 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 884448-99 | Drill | Diamondback E&P LLC | Sep 29, 2022 | Oct 6, 2022 | — | 13,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-58491 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,574 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Lamar | 5,032 | -2,458 |
| Bell Canyon | 5,061 | -2,487 |
| Cherry Canyon | 5,901 | -3,327 |
| Bone Spring | 7,938 | -5,364 |
| Avalon | 7,977 | -5,403 |
| CastileCASTILLE | — | — |
| Delaware | — | — |
| DelawareDELAWARE CONSOLIDATED GAS | — | — |
| DelawareFORD / DELAWARE | — | — |
| Permian (undifferentiated)PERMIAN (UNDEFINED) | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,676 | 23,175 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 2,566 | 13.5 | 2,200 S |
| 7.625 | 9,733 | 8.75 | 875 S |
| 5.5 | 23,240 | 6.75 | 1,990 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 | Sep 12, 2023 | Jul 10, 2023 | Yes |
| 00 | Mar 8, 2023 | Feb 27, 2023 | 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 42-389-40251 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-389-40251 → 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.
Caspian 19-3 C42-389-39961
0.0 KM · Diamondback E&P LLC · Section with this well →
| Delaware | 5,032 | -2,458 |
| Bell Canyon | 5,064 | -2,490 |
| Cherry Canyon | 5,869 | -3,295 |
| Bone Spring | 8,118 | -5,544 |
| Wolfcamp | 10,572 | -7,998 |
| Permian (undifferentiated) | — | |
| Castile | — | |
| Delaware | — |
10 TOPS · FIRST 8
State Shire 72-18 A42-389-39909
0.8 KM · Diamondback E&P LLC · Section with this well →
| Lamar | 5,010 | -2,451 |
| Bell Canyon | 5,053 | -2,494 |
| Cherry Canyon | 5,890 | -3,331 |
| Brushy Canyon | 7,154 | -4,595 |
| Avalon | 8,069 | -5,510 |
| Bone Spring | 8,225 | -5,666 |
| Wolfcamp | 10,745 | -8,186 |
| Delaware | — |
12 TOPS · FIRST 8
State Shire 72-18 B42-389-39910
0.8 KM · Diamondback E&P LLC · Section with this well →
| Lamar | 5,040 | -2,481 |
| Bell Canyon | 5,065 | -2,506 |
| Cherry Canyon | 5,907 | -3,348 |
| Avalon | 8,065 | -5,506 |
| Bone Spring | 8,204 | -5,645 |
| Permian (undifferentiated) | — | |
| Pennsylvanian | — | |
| Wolfcamp | — |
12 TOPS · FIRST 8
Rogers 6 Unit42-389-35859
1.0 KM · Diamondback E&P LLC · Section with this well →
| Delaware | 5,041 | -2,481 |
| Bone Spring | 8,225 | -5,665 |
| Wolfcamp | — | |
| Bell Canyon | — | |
| Permian (undifferentiated) | — | |
| Pennsylvanian | — | |
| Delaware | — | |
| Delaware | — |
10 TOPS · FIRST 8
Caspian 19-20 Unit42-389-38731
1.0 KM · Diamondback E&P LLC · Section with this well →
| Bell Canyon | 4,991 | -2,441 |
| Bone Spring | 7,885 | -5,335 |
| Wolfcamp | 10,513 | -7,963 |
| Delaware | — | |
| Pennsylvanian | — | |
| Delaware | — | |
| Delaware | — | |
| Permian (undifferentiated) | — |
10 TOPS · FIRST 8
Rogers 6 Unit42-389-35860
1.0 KM · Diamondback E&P LLC · Section with this well →
| Delaware | 5,036 | -2,491 |
| Bone Spring | 8,220 | -5,675 |
| Wolfcamp | 10,732 | -8,187 |
| Cherry Canyon | — | |
| Bell Canyon | — | |
| Castile | — | |
| Delaware | — | |
| Delaware | — |
10 TOPS · FIRST 8
Rogers 6 Unit42-389-33976
1.3 KM · Endeavor Energy Resources L.P. · Section with this well →
| Lamar | 5,014 | -2,446 |
| Canyons | 5,030 | -2,462 |
| 1ST Thru 3RD Bone Springs | 9,077 | -6,509 |
| 1ST Thru 3RD Bong Springs | 9,077 | -6,509 |
| Wolfcamp | 10,745 | -8,177 |
Walkaloosa 5 East42-389-40186
1.5 KM · Diamondback E&P LLC · Section with this well →
| Delaware | 5,043 | -2,460 |
| Bell Canyon | 5,066 | -2,483 |
| Cherry Canyon | 5,912 | -3,329 |
| Bone Spring | 8,017 | -5,434 |
| Wolfcamp | 10,658 | -8,075 |
| Delaware | — | |
| Delaware | — | |
| Pennsylvanian | — |
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/38940251, documented in the API reference.