TEXAS · WELLS · WICHITA COUNTY · CHILSON EST. LEASE · API 42-485-44362 · DISTRICT 7C
Chilson Est. #8S
Wichita County · Wichita County Regular field · Injection · Vertical
Chilson Est. #8S (API 42-485-44362) is a well in Wichita County operated by R2q Operating LLC, completed April 24, 2008 and listed as injection on the RRC schedule.
The RRC has issued one drilling permit, issued March 19, 2008, permitted to 1,700 ft.
It was permitted by Texas Energy Operations, LC and has since transferred to R2q Operating LLC on the wellbore schedule.
Completion filings report one formation top, including Thomas Sand.
Its lease has reported 123K barrels of oil and 20 mcf of gas since January 1993, last reporting volume in February 2026. The lease carries 32 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 41.9K barrels injected in the 12 months reported through May 2025.
Operator of record
Permitted by Texas Energy Operations, LC; the EWA schedule now lists a different operator.
- Based in
- Iowa Park, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Sep 12, 2025
- Permits on file
- 38
- Phone
- (940) 228-1500
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | R2Q Operating LLC |
| Production reports | R2Q Operating LLCthrough Feb 2026 |
| Latest permit | Texas Energy Operations, LCMar 19, 2008 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 1,700
- total depth, ft
- 1
- permits on file
- Mar 19, 2008
- last permit issued
- Apr 24, 2008
- completed
- 123K
- cumulative oil, bbl
- 20
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Feb 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 24, 2008
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active – Extension (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 lease this well is completed on; they carry 32 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Chilson Est. O-13-12536 | Wichita County Regular | R2Q Operating LLC | 32 | 123K | 20 | Jan 1993 – Feb 2026 |
Oil, barrels lease total
Last 12 months 622 · prior 12 861(-28%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Winfrey Oil Co., Inc.Jan 1993 → Sep 1994
- 2Sissom OilOct 1994 → Dec 2007
- 3Texas Energy Operations, LCJan 2008 → Apr 2012
- 4Txon Partners, LLCMay 2012 → Jun 2017
- 5White Knight Production LLCJul 2017 → Apr 2020
- 6R2Q Operating LLCAug 2021 → Feb 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 656854-99 | Drill | Texas Energy Operations, LC | Mar 6, 2008 | Mar 19, 2008 | Apr 24, 2008 | 1,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Apr 24, 2008 | Chilson Est. O-13-12536 | Wichita County Regular | R2Q Operating LLC | Injection | 1,700 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 1,620 | 1,650 | Perforated |
| 1,626 | 1,630 | Perforated |
| 1,628 | 1,632 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 4.5 | 15 | 6.75 | 50 S |
| 4.5 | 1,682 | 6.75 | 250 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 | Apr 6, 2020 | Feb 17, 2020 | — |
| 00 | Nov 29, 2012 | Jul 4, 2012 | — |
| 00 | Nov 20, 2008 | Aug 5, 2008 | — |
| 00 | Oct 9, 2008 | May 19, 2008 | Yes |
| 00 | Oct 4, 2008 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received May 18, 2011. Resistivity. 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 |
|---|---|---|---|---|
| RESISTIVITYSpans Thomas Sand | TIFF | 100 to 1,703 | May 18, 2011run Apr 24, 2008 | 1.71 |
"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 42-485-44362 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-485-44362 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 41.9K
- bbl, last 12 reported months
- 767K
- bbl, all reported
- May 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000102621 | H-1 Injection | Active | 400 | 805 | 1,620–1,650 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 41,927 · prior 12 105,763(-60%)
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/48544362, documented in the API reference.