TEXAS · WELLS · KARNES COUNTY · APOLLO UNIT LEASE · API 42-255-35321 · DISTRICT 02
Apollo Unit #103H
Karnes County · Sugarkane (Austin Chalk) field · Producing · Horizontal
Apollo Unit #103H (API 42-255-35321) is a horizontal well in Karnes County operated by Caturus Energy LLC, completed November 25, 2017 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued February 17, 2017, permitted to 10,299 ft.
It was permitted by Blackbrush O & G, LLC and has since transferred to Caturus Energy LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Yegua, Queen City, Reklaw, Carrizo.
Its lease has reported 2.17M barrels of oil and 7.92M mcf of gas since September 2017, last reporting volume in April 2026. The lease carries 11 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Blackbrush O & G, LLC; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Sep 3, 2025
- Permits on file
- 78
- Phone
- (713) 600-6062
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Caturus Energy LLC |
| Production reports | Caturus Energy, LLCthrough Apr 2026 |
| Latest permit | Blackbrush O & G, LLCFeb 17, 2017 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,299
- total depth, ft
- 1
- permits on file
- Feb 17, 2017
- last permit issued
- Nov 25, 2017
- completed
- 2.17M
- cumulative oil, bbl
- 7.92M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2017 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 25, 2017
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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 11 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Apollo Unit O-2-11429 | Sugarkane (Austin Chalk) | Caturus Energy, LLC | 11 | 2.17M | 7.92M | Sep 2017 – Apr 2026 |
Oil, barrels lease total
Last 12 months 101,790 · prior 12 234,778(-57%)
Gas, mcf lease total
Last 12 months 452,134 · prior 12 1,035,234(-56%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Blackbrush O & G, LLCSep 2017 → Jun 2023
- 2Kimmeridge Texas Gas, LLCJul 2023 → Jul 2025
- 3Caturus Energy, LLCAug 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 823094-99 | Drill | Blackbrush O & G, LLC | Feb 9, 2017 | Feb 17, 2017 | May 25, 2017 | 10,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Nov 25, 2017 | Apollo Unit O-2-11429 | Sugarkane (Austin Chalk) | Caturus Energy LLC | Producing | 10,299 |
Formation tops
As filed on W-2/G-1. Subsea from 329 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| YeguaYEGUA - DISPOSAL | 960 | -631 |
| Queen City | 2,770 | -2,441 |
| Reklaw | 3,600 | -3,271 |
| Carrizo | 3,940 | -3,611 |
| WilcoxWILCOX - DISPOSAL | 5,080 | -4,751 |
| Austin ChalkAUSTIN CHALK - H2S | 10,141 | -9,812 |
| Eagle FordEAGLE FORD - H2S | — | — |
| EdwardsEDWARDS - H2S | — | — |
| FrioFRIO - DISPOSAL | — | — |
| SligoSLIGO - H2S | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,981 | 15,470 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 4,998 | 12.25 | 2,050 S |
| 5.5 | 15,634 | 8.75 | 2,530 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 | Jun 13, 2018 | Dec 14, 2017 | Yes |
Well logs
1 log loaded from the RRC's log index, 1 of it with a digital LAS file, the latest received Jun 9, 2020. 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 Carrizo, Wilcox, Austin Chalk | LAS + TIFF | 5,010 to 15,634 | Jun 9, 2020 | 1.65 + 0.39 |
"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 42-255-35321 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-255-35321 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it.
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/25535321, documented in the API reference.