WELL · 42-435-35687 · DISTRICT 7
Kirby 1 #4
Sutton County · Sawyer (Leonard) field · Vertical
Kirby 1 #4 (API 42-435-35687) is a well in Sutton County operated by Upp Operating LLC, completed March 18, 2020.
The RRC has issued 2 drilling permits (amended once) between 2001 and 2020, permitted to 8,150 ft.
Completion filings report 6 formation tops, including Base Cretaceous (marker), Cretaceous, Leonard, Sawyer (Leonard).
Its 3 leases have reported 1 barrels of oil and 128K mcf of gas since January 2002, last reporting in July 2026. The leases carry 3 wells, so these are lease totals, not this well alone.
Operator of record
Houston, TX · P-5 Y, filed Dec 4, 2025 · 33 permits on file · (817) 389-2729
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Upp Operating LLC |
| Production reports | Upp Operating, LLCthrough Jan 2023 |
| Latest permit | Upp Operating, LLCJan 23, 2020 |
- 8,150
- total depth, ft
- 3
- permits on file
- Jan 23, 2020
- last permit issued
- Mar 18, 2020
- completed
- 1
- cumulative oil, bbl
- 128K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 2002 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 18, 2020
- Shut in
- —
- Plugged
- —
Surface location
30.649683, -100.745400
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Sutton County.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the 3 leases this well is completed on; they carry 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Kirby "1" G-9-187727 | Sawyer (Canyon) | Upp Operating, LLC | 1 | 0 | 128K | Jan 2002 – Jul 2026 |
| Kirby 1 G-9-290030 | Sawyer (Leonard) | Upp Operating, LLC | 1 | 0 | 260 | Mar 2020 – Jul 2026 |
| Kirby 1 O-9-21985 | Sawyer (Leonard) | Upp Operating, LLC | 1 | 1 | 0 | Jan 2023 – Jul 2026 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Dominion Oklahoma Texas E&P, IncJan 2002 → Dec 2007
- 2Highmount Expl & Prod Texas LLCJan 2008 → Apr 2008
- 3Upp Operating, LLCMar 2020 → Jan 2023
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 860931-99 | Recompletion | Upp Operating, LLC | Jan 14, 2020 | Jan 23, 2020 | Mar 3, 2020 | 8,150 |
| 515394-98 | Drill | Dominion Oklahoma Texas E&P, Inc | Mar 6, 2002 | Nov 15, 2001 | — | 8,150 |
| 515394-99 | Drill | Dreyfus, Louis Natural Gas Corp | Nov 15, 2001 | Nov 15, 2001 | Dec 7, 2001 | 7,900 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-9-187727 | — | — | — | — |
| — | — G-9-290030 | — | — | — | — |
| — | — O-9-21985 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,337 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Base Cretaceous (marker)BASE CRETACEOUS | 865 | 1,472 |
| Base Cretaceous (marker)BASE OF CRETACEOUS | 865 | 1,472 |
| Cretaceous | 865 | 1,472 |
| Leonard | 2,064 | 273 |
| Sawyer (Leonard) | 2,064 | 273 |
| Wolfcamp | 3,750 | -1,413 |
| Canyon | 6,220 | -3,883 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,097 | 2,107 | Perforated |
| 6,274 | 6,919 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,202 | 11 | 240 S |
| 4.5 | 7,130 | 7.875 | 400 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 | Mar 29, 2023 | Feb 10, 2023 | — |
| 00 | Dec 1, 2021 | May 20, 2021 | — |
| 00 | Oct 15, 2020 | May 14, 2020 | — |
| 00 | May 28, 2002 | Feb 8, 2002 | Yes |
| 00 | Apr 2, 2002 | — | — |
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 42-435-35687 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-435-35687 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). 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.
Deberry A42-435-36225
4.9 KM · Upp Operating, LLC · Section with this well →
| Base Cretaceous (marker) | 815 | 1,509 |
| Cretaceous | 815 | 1,509 |
| Base Cretaceous (marker) | 815 | 1,509 |
| Leonard | 1,050 | 1,274 |
| Sawyer (Leonard) | 1,656 | 668 |
| Sawyer (Leoonard) | 1,656 | 668 |
| Wolfcamp | 3,300 | -976 |
| Canyon | 5,400 | -3,076 |
10 TOPS · FIRST 8
Mayer 4742-435-35159
8.0 KM · Upp Operating, LLC · Section with this well →
| Base Cretaceous (marker) | 890 | 1,424 |
| Wolfcamp | 3,590 | -1,276 |
| Canyon | 6,291 | -3,977 |
| Strawn | 7,720 | -5,406 |
Hill Mayer Minnies H. A42-435-34520
8.3 KM · Upp Operating, LLC · Section with this well →
| Base Cretaceous (marker) | 757 | 1,432 |
| Sawyer (Leonard) | 1,510 | 679 |
| Wolfcamp | 3,523 | -1,334 |
| Canyon | 6,290 | -4,101 |
| Strawn | 7,734 | -5,545 |
| Pennsylvanian | — |
Bloodworth 14042-435-35259
9.3 KM · Highmount Expl & Prod Texas LLC · Section with this well →
| Base Cretaceous (marker) | 802 | 1,401 |
| Wolfcamp | 3,416 | -1,213 |
| Canyon | 6,047 | -3,844 |
| Strawn | 7,715 | -5,512 |
Davis 'A'42-435-36343
9.9 KM · Upp Operating, LLC · Section with this well →
| Base Cretaceous (marker) | 680 | 1,486 |
| Wolfcamp | 2,966 | -800 |
| Canyon | 5,276 | -3,110 |
Davis F42-435-37823
11.7 KM · Upp Operating, LLC · Section with this well →
| Base Cretaceous (marker) | 817 | 1,464 |
| Wolfcamp | 2,955 | -674 |
| Canyon | 5,378 | -3,097 |
Mayfield 4142-435-37219
12.8 KM · Highmount Expl & Prod Texas LLC · Section with this well →
| Base Cretaceous (marker) | 892 | 1,396 |
| Wolfcamp | 3,233 | -945 |
| Canyon | 6,264 | -3,976 |
| Strawn | 7,886 | -5,598 |
Steen42-435-37977
14.2 KM · Upp Operating, LLC · Section with this well →
| Base Cretaceous (marker) | 768 | 1,539 |
| Wolfcamp | 2,949 | -642 |
| Canyon | 5,345 | -3,038 |
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/43535687, documented in the API reference.