TEXAS · WELLS · STARR COUNTY · SEYFREIDT 928 LEASE · API 42-427-33567 · DISTRICT 04
Seyfreidt 928 #4
Starr County · Rincon N. (Vicksburg Cons.) field · Producing · Vertical
Seyfreidt 928 #4 (API 42-427-33567) is a well in Starr County operated by Merit Energy Company, completed July 21, 2003 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued April 11, 2003, permitted to 9,450 ft.
It was permitted by Samson Lone Star LP and has since transferred to Merit Energy Company on the wellbore schedule.
Completion filings report 5 formation tops, including K-Conns, N5538 Fault, N5500 Fault, W-Lower.
Its lease has reported 21.2K barrels of oil and 1.19M mcf of gas since July 2003, last reporting volume in April 2026.
Operator of record
Permitted by Samson Lone Star LP; the EWA schedule now lists a different operator.
- Based in
- Dallas, TX
- P-5 status
- Active (A)
- P-5 last filed
- Nov 7, 2025
- Permits on file
- 1,049
- Phone
- (972) 701-8377
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Merit Energy Company |
| Production reports | Merit Energy Companythrough Apr 2026 |
| Latest permit | Samson Lone Star LPApr 11, 2003 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,450
- total depth, ft
- 1
- permits on file
- Apr 11, 2003
- last permit issued
- Jul 21, 2003
- completed
- 21.2K
- cumulative oil, bbl
- 1.19M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 2003 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 21, 2003
- 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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Seyfreidt 928 G-4-197018 | Rincon, N. (Vicksburg Cons.) | Merit Energy Company | 1 | 21.2K | 1.19M | Jul 2003 – Apr 2026 |
Gas, mcf lease total
Last 12 months 27,078 · prior 12 25,519(+6%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Samson Lone Star LPJul 2003 → Jun 2007
- 2Samson Lone Star, LLCJul 2007 → Apr 2008
- 3Pogo Producing Company LLCMay 2008 → Aug 2011
- 4Plains Exploration & Prod. Co.Sep 2011 → Feb 2012
- 5OXY USA Inc.Mar 2012 → Apr 2017
- 6Merit Energy CompanyMay 2017 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 526610-99 | Drill | Samson Lone Star LP | Dec 20, 2002 | Apr 11, 2003 | Jun 6, 2003 | 10,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jul 21, 2003 | Seyfreidt 928 G-4-197018 | Rincon N. (Vicksburg Cons.) | Merit Energy Company | Producing | 9,450 |
Formation tops
As filed on W-2/G-1. Subsea from 393 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| K-Conns | 6,900 | -6,507 |
| N5538 Fault | 7,195 | -6,802 |
| N5500 Fault | 8,179 | -7,786 |
| W-Lower | 8,715 | -8,322 |
| Lvkbg Nimmo | 9,100 | -8,707 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,272 | 7,298 | Perforated |
| 8,272 | 8,298 | Perforated |
| 8,272 | 8,850 | Perforated |
| 8,512 | 8,579 | Perforated |
| 8,842 | 8,850 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 2,551 | 12.25 | 770 S |
| 7 | 7,710 | 8.75 | 270 S |
| — | 8,190 | 6.25 | 220 S |
| 4.5 | 9,541 | — | — |
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 | Dec 3, 2003 | Nov 12, 2003 | — |
| 00 | Oct 28, 2003 | Aug 25, 2003 | — |
| 00 | Oct 24, 2003 | Aug 22, 2003 | Yes |
| 00 | Oct 10, 2003 | — | — |
Well logs
2 logs loaded from the RRC's log index, the latest received Sep 1, 2006. Density, Neutron, 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 |
|---|---|---|---|---|
| Combination: Resistivity/Neutron Density PorosityHIGH RES. INDUCTION SPECTRAL DENSITY DUAL SPACED NEUTRON TRUE VERTICAL DEPTHSpans N5538 Fault, N5500 Fault, W-Lower, Lvkbg Nimmo | TIFF | 7,696 to 9,522 | Aug 15, 2006run Jun 21, 2003 | — |
| Combination: Resistivity/Neutron Density PorosityHIGH RES INDUCTION SPECTRAL DENSITY DUAL SPACED NEUTRONSpans K-Conns, N5538 Fault | TIFF | 2,551 to 7,692 | Sep 1, 2006run Jun 14, 2003 | — |
"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 42-427-33567 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-427-33567 → 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/42733567, documented in the API reference.