WELL · 42-503-42273 · DISTRICT 9
Nellie #4
Young County · Young County Regular field · Producing · Vertical
Nellie #4 (API 42-503-42273) is a well in Young County operated by Kelly Mahler Operating LLC, completed July 13, 2015 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued December 15, 2014, permitted to 999 ft.
It was permitted by Rogers Drilling CO., Inc. and has since transferred to Kelly Mahler Operating LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Gunsight, Atoka, Bryson, Buttram.
Its lease has reported 4.44K barrels of oil since January 2015, last reporting in July 2026. The lease carries 3 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Rogers Drilling Co., Inc.; the EWA schedule now lists a different operator.
Graham, TX · P-5 Y, filed Jan 5, 2026 · 1 permits on file · (940) 564-6037
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Kelly Mahler Operating LLC |
| Production reports | Kelly Mahler Operating, LLCthrough Apr 2026 |
| Latest permit | Rogers Drilling Co., Inc.Dec 15, 2014 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 999
- total depth, ft
- 1
- permits on file
- Dec 15, 2014
- last permit issued
- Jul 13, 2015
- completed
- 4.44K
- cumulative oil, bbl
- 0
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 2015 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 13, 2015
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
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 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Nellie O-13-33128 | Young County Regular | Kelly Mahler Operating, LLC | 3 | 4.44K | 0 | Jan 2015 – Jul 2026 |
Oil, barrels lease total
Last 12 months 468 · prior 12 310(+51%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Rogers Drilling Co., Inc.Jan 2015 → May 2022
- 2Kelly Mahler Operating, LLCNov 2022 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 801638-99 | Drill | Rogers Drilling Co., Inc. | Dec 11, 2014 | Dec 15, 2014 | Mar 16, 2015 | 999 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-13-33128 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 1,131 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 719 | 724 | Perforated |
| 731 | 736 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 4.5 | 810 | 7.875 | 200 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 | Jul 20, 2015 | Jul 14, 2015 | 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 42-503-42273 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-503-42273 → 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.
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/50342273, documented in the API reference.