WELL · 42-481-34145 · DISTRICT 3
Nilson #1
Wharton County · Caney Creek (Frio 5000) field · Producing · Vertical
Nilson #1 (API 42-481-34145) is a well in Wharton County operated by Hilcorp Energy Company, completed July 20, 2015 and listed as producing on the RRC schedule.
The RRC has issued 2 drilling permits (amended once) between 1999 and 2002, permitted to 10,000 ft.
It was permitted by Chesapeake Operating, Inc. and has since transferred to Hilcorp Energy Company on the wellbore schedule.
Completion filings report 4 formation tops, including Frio, Vicksburg, Mood'S Branch, Moodys Branch.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Chesapeake Operating, Inc.; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Mar 26, 2026 · 3,453 permits on file · (713) 209-2411
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Hilcorp Energy Company |
| Production reports | Hilcorp Energy Companythrough Mar 2015 |
| Latest permit | Chesapeake Operating, Inc.May 17, 2002 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,000
- total depth, ft
- 3
- permits on file
- May 17, 2002
- last permit issued
- Jul 20, 2015
- completed
- 0
- cumulative oil, bbl
- 2.02M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 1999 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 20, 2015
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
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 2 leases 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 |
|---|---|---|---|---|---|---|
| Nilson G-3-176876 | Balthrop (9000 Yegua) | Hilcorp Energy Company | 1 | 0 | 1.76M | Oct 1999 – Jul 2026 |
| Nilson G-3-189174 | Caney Creek (Frio 5000) | Hilcorp Energy Company | 1 | 0 | 259K | May 2002 – 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.
- 1Chesapeake Operating, Inc.Nov 1999 → Dec 2008
- 2Hilcorp Energy CompanyFeb 2015 → Mar 2015
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 520077-99 | Recompletion | Chesapeake Operating, Inc. | May 17, 2002 | May 17, 2002 | Apr 25, 2002 | 5,500 |
| 487809-98 | Drill | Chesapeake Operating, Inc. | Jan 25, 2000 | Sep 22, 1999 | Sep 26, 1999 | 10,000 |
| 487809-99 | Drill | Chesapeake Operating, Inc. | Sep 22, 1999 | Sep 22, 1999 | — | 10,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-3-176876 | — | — | — | — |
| — | — G-3-189174 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 107 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,095 | 5,097 | Perforated |
| 5,173 | 5,182 | Perforated |
| 8,310 | 8,380 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 2,530 | 12.75 | 1,050 S |
| 10.75 | 2,530 | 14.75 | 1,390 S |
| 7.625 | 6,702 | 9.875 | 470 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 14, 2016 | Mar 7, 2016 | — |
| 00 | Jul 25, 2002 | Jun 3, 2002 | Yes |
| 00 | Jul 9, 2002 | — | — |
| 00 | Jun 6, 2000 | Feb 10, 2000 | Yes |
| 00 | May 24, 2000 | — | — |
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 42-481-34145 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-481-34145 → 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/48134145, documented in the API reference.