TEXAS · WELLS · MARTIN COUNTY · JO GREGORY 250 B LEASE · API 42-317-44387 · DISTRICT 7B
JO Gregory 250 B #1MS
Martin County · Spraberry (Trend Area) field · Shut In · Horizontal
JO Gregory 250 B #1MS (API 42-317-44387) is a horizontal well in Martin County operated by Diamondback E&P LLC, completed April 21, 2023 and listed as shut in on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued May 17, 2022, permitted to 8,609 ft.
Completion filings report 15 formation tops, including Yates, Queen, Grayburg, San Andres.
Its lease has reported 533K barrels of oil and 1.32M mcf of gas since September 2022, last reporting volume in April 2026. The lease carries 2 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
- 5,243
- 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 LLCMay 17, 2022 |
- 8,609
- total depth, ft
- 2
- permits on file
- May 17, 2022
- last permit issued
- Apr 21, 2023
- completed
- 533K
- cumulative oil, bbl
- 1.32M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Apr 2023 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 21, 2023
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
Surface location
32.396624, -102.095524 NAD27, as filed
32.396733, -102.095951 WGS84
Permit surface location from the RRC GIS record, referenced to NAD27 as the RRC files it; the WGS84 pair is the same point through NOAA's NADCON grid, and the map link uses it, in Martin County.
Wells nearby
Every well with a location on file around this one, in any state, nearest first.
Texas locations come from drilling permits, so most older Texas wells have none and are not listed.
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 |
|---|---|---|---|---|---|---|
| JO Gregory 250 B O-10-58629 | Spraberry (Trend Area) | Diamondback E&P LLC | 2 | 533K | 1.32M | Sep 2022 – Apr 2026 |
Oil, barrels lease total
Last 12 months 85,809 · prior 12 133,416(-36%)
Gas, mcf lease total
Last 12 months 338,320 · prior 12 462,861(-27%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Diamondback E&P LLCApr 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 880088-98 | Drill | Diamondback E&P LLC | Nov 1, 2023 | May 17, 2022 | Jul 26, 2022 | 9,900 |
| 880088-99 | Drill | Diamondback E&P LLC | May 12, 2022 | May 17, 2022 | Jul 26, 2022 | 9,900 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Apr 21, 2023 | JO Gregory 250 B O-10-58629 | Spraberry (Trend Area) | Diamondback E&P LLC | Shut In | 8,609 |
Formation tops
As filed on W-2/G-1. Subsea from 2,882 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 2,941 | -59 |
| Queen | 3,348 | -466 |
| Grayburg | 3,991 | -1,109 |
| San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H | 4,451 | -1,569 |
| Clear ForkCLEARFORK | 6,437 | -3,555 |
| Spraberry | 8,109 | -5,227 |
| Cisco | — | — |
| Dean | — | — |
| Devonian | — | — |
| Ellenburger | — | — |
| Fusselman | — | — |
| Precambrian (Undifferentiated) | — | — |
| Santa Rosa | — | — |
| Silurian (undifferentiated)SILURIAN | — | — |
| Wolfcamp | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,789 | 18,914 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 11.75 | 1,624 | 14.75 | 1,180 S |
| 8.625 | 6,532 | 11 | 1,040 S |
| 5.5 | 19,005 | 7.875 | 1,845 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 | Jan 5, 2024 | Oct 25, 2023 | Yes |
| 00 | Aug 21, 2023 | Jul 17, 2023 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Sep 17, 2025. Gamma ray. 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 |
|---|---|---|---|---|
| Gamma RaySpans Yates, Queen, Grayburg, San Andres, Clear Fork, Spraberry | TIFF | 0 to 19,015 | Sep 17, 2025 | 42.7 |
"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 42-317-44387 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-44387 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it. The University Lands library has no per-well link: then paste it into its 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 neighbors, subsea-aligned so they line up regardless of surface terrain.
JO Gregory 250 D42-317-44385
0.0 KM · Diamondback E&P LLC · Section with this well →
| Yates | 2,948 | -66 |
| Queen | 3,355 | -473 |
| Grayburg | 4,009 | -1,127 |
| San Andres | 4,464 | -1,582 |
| Clear Fork | 6,428 | -3,546 |
| Spraberry | 8,121 | -5,239 |
| Dean | 9,436 | -6,554 |
| Wolfcamp | 9,588 | -6,706 |
10 TOPS · FIRST 8
JO Gregory 250 B42-317-44386
0.0 KM · Diamondback E&P LLC · Section with this well →
| Yates | 2,941 | -59 |
| Queen | 3,354 | -472 |
| Grayburg | 4,001 | -1,119 |
| San Andres | 4,458 | -1,576 |
| Clear Fork | 6,427 | -3,545 |
| Spraberry | 8,122 | -5,240 |
| Cisco | — | |
| Wolfcamp | — |
10 TOPS · FIRST 8
JO Gregory 250 A42-317-44384
0.0 KM · Diamondback E&P LLC · Section with this well →
| Yates | 2,938 | -56 |
| Queen | 3,348 | -466 |
| Grayburg | 3,988 | -1,106 |
| San Andres | 4,465 | -1,583 |
| Clear Fork | 6,471 | -3,589 |
| Spraberry | 8,116 | -5,234 |
| Cisco | — | |
| Wolfcamp | — |
10 TOPS · FIRST 8
JO Gregory 250 A42-317-44383
0.0 KM · Diamondback E&P LLC · Section with this well →
| Yates | 2,941 | -60 |
| Queen | 3,350 | -469 |
| Grayburg | 3,989 | -1,108 |
| San Andres | 4,451 | -1,570 |
| Clear Fork | 6,437 | -3,556 |
| Spraberry | 8,109 | -5,228 |
| Santa Rosa | — | |
| Pennsylvanian | — |
11 TOPS · FIRST 8
JO Gregory 250 H42-317-44382
0.0 KM · Diamondback E&P LLC · Section with this well →
| Yates | 2,943 | -62 |
| Queen | 3,350 | -469 |
| Grayburg | 3,991 | -1,110 |
| San Andres | 4,447 | -1,566 |
| Clear Fork | 6,439 | -3,558 |
| Spraberry | 8,108 | -5,227 |
| Dean | 9,417 | -6,536 |
| Wolfcamp | 9,597 | -6,716 |
10 TOPS · FIRST 8
JO Gregory 250 G42-317-44381
0.5 KM · Diamondback E&P LLC · Section with this well →
| Santa Rosa | 1,461 | 1,411 |
| Yates | 2,916 | -44 |
| Grayburg | 3,959 | -1,087 |
| San Andres | 4,420 | -1,548 |
| Glorieta | 5,412 | -2,540 |
| Clear Fork | 6,432 | -3,560 |
| Spraberry | 8,133 | -5,261 |
| Queen | — |
10 TOPS · FIRST 8
JO Gregory 250 G42-317-44380
0.5 KM · Diamondback E&P LLC · Section with this well →
| Santa Rosa | 1,439 | 1,433 |
| Yates | 2,920 | -48 |
| Grayburg | 3,955 | -1,083 |
| San Andres | 4,422 | -1,550 |
| Glorieta | 5,396 | -2,524 |
| Clear Fork | 6,419 | -3,547 |
| Spraberry | 8,106 | -5,234 |
| Wolfcamp | — |
12 TOPS · FIRST 8
JO Gregory 250 L42-317-44379
0.5 KM · Diamondback E&P LLC · Section with this well →
| Yates | 2,932 | -60 |
| Grayburg | 3,962 | -1,090 |
| San Andres | 4,424 | -1,552 |
| Glorieta | 5,389 | -2,517 |
| Clear Fork | 6,432 | -3,560 |
| Spraberry | 8,063 | -5,191 |
| Dean | 9,404 | -6,532 |
| Wolfcamp | 9,542 | -6,670 |
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/31744387, documented in the API reference.