WELL LOGS · UNITED STATES · ONE ROW PER LOG

Zavala County well logs

Well logs loaded into Petrora from the regulators' log indexes, newest received first: what each measures, whether it is a digital LAS file or an image, the interval filed for it, and the formations it spans by the well's own tops. Loaded so far for Texas; more states and data sources will follow. Petrora lists these logs; each well's page links to the regulator for the files.

472 LOG FILES ON 418 WELLS · A LOG'S LAS AND IMAGE IN ONE ROW · PAGE 1 OF 10

Well Logas describedIntervalft, as filedDatereceived
Cenizo a #126HHZ42-507-33417Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)TIFF0 to 18,971Sep 10, 2026
Cenizo a #104HHZ42-507-33497Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)TIFF0 to 18,026Sep 10, 2026
Glasscock Ranch C #A100HHZ42-507-33507Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)TIFF105 to 18,158Sep 10, 2026
Glasscock Ranch C #a 98HHZ42-507-33505Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)TIFF0 to 16,252Aug 7, 2026
Wilson-Gates B #6HHZ42-507-33510Zavala, TX · Buffco Production Inc.Gamma RayTIFF5,000 to 15,725Jul 21, 2026
Glasscock Ranch C #B101HHZ42-507-33500Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)TIFF0 to 18,142Jul 9, 2026
Glasscock Ranch C #B102HHZ42-507-33501Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)TIFF0 to 18,472Jul 9, 2026
Cenizo a #125HHZ42-507-33416Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)TIFF0 to 19,018May 5, 2026
Cenizo a #129HHZ42-507-33478Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)TIFF0 to 19,535May 5, 2026
Cenizo a #105HHZ42-507-33498Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)TIFF0 to 18,140May 5, 2026
Cenizo a #106HHZ42-507-33499Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)TIFF0 to 17,114May 5, 2026
Cenizo a #126HHZ42-507-33417Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)TIFF0 to 18,971Apr 17, 2026
Glasscock Ranch C #E113HHZ42-507-33487Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)TIFF0 to 18,065Apr 17, 2026
Glasscock Ranch C #E114HHZ42-507-33488Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)TIFF0 to 16,941Apr 17, 2026
KM Ranch a Allocation 2 #105HHZ42-507-33493Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)TIFF0 to 18,163Apr 17, 2026
KM Ranch a Allocation 3 #106HHZ42-507-33494Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)TIFF0 to 18,275Apr 17, 2026
KM Ranch a Allocation 4 #201HAHZ42-507-33495Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)TIFF0 to 15,241Apr 17, 2026
Glasscock Ranch C #D110HHZ42-507-33484Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)TIFF0 to 18,534Feb 4, 2026
Dial #1STHZ42-507-33008Zavala, TX · CML Exploration LLCGamma RayTIFF5,100 to 9,112Dec 29, 2025
Stch-Johnson #4HHZ42-507-33462Zavala, TX · Buffco Production Inc.Measure While Drilling (MWD)TIFF2,655 to 20,218Dec 3, 2025
Stch-Johnson #3HHZ42-507-33463Zavala, TX · Buffco Production Inc.Measure While Drilling (MWD)TIFF2,635 to 20,600Dec 3, 2025
Stch-Johnson #1HHZ42-507-33345Zavala, TX · Buffco Production Inc.Measure While Drilling (MWD)TIFF2,646 to 20,265Nov 5, 2025
Stch-Johnson #2HHZ42-507-33347Zavala, TX · Buffco Production Inc.Measure While Drilling (MWD)TIFF2,646 to 20,315Nov 5, 2025
Wilson-Gates-Coggins-Powell #1HHZ42-507-33461Zavala, TX · Buffco Production Inc.Measure While Drilling (MWD)TIFF2,562 to 16,650Sep 30, 2025
Wilson-Gates-Coggins-Powell #1HHZ42-507-33461Zavala, TX · Buffco Production Inc.Measure While Drilling (MWD)TIFF2,585 to 17,770Sep 30, 2025
Wilson-Gates-Coggins-Powell-A #2HHZ42-507-33468Zavala, TX · Buffco Production Inc.Measure While Drilling (MWD)TIFF2,562 to 16,650Sep 30, 2025
Glasscock Allocation 2 #F124HHZ42-507-33455Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)2 TIFF0 to 17,884Aug 12, 2025
Glasscock Allocation 3 #F125HHZ42-507-33456Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)2 TIFF0 to 18,098Jul 30, 2025
Glasscock Ranch C #107HHZ42-507-33458Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)2 TIFF0 to 17,567Jul 22, 2025
Glasscock Ranch C #106HHZ42-507-33457Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)2 TIFF0 to 17,779Jul 21, 2025
Glasscock Allocation 1 #F123HHZ42-507-33454Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)2 TIFF0 to 17,897Jul 11, 2025
Glasscock Ranch C #105HHZ42-507-33453Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)2 TIFF0 to 17,772Jun 13, 2025
Cenizo a #134HHZ42-507-33443Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)TIFF0 to 20,849Mar 18, 2025
Cenizo a #135HHZ42-507-33444Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)TIFF0 to 18,665Mar 18, 2025
Cenizo a #136HHZ42-507-33446Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)2 TIFF0 to 18,541Mar 18, 2025
Cenizo a #137HHZ42-507-33445Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)TIFF0 to 1,855Feb 7, 2025
Winterbotham Zav #g 4HHZ42-507-33548Zavala, TX · Exco Operating Company LPGamma RayTIFF3,125 to 15,249Dec 6, 2024
Winterbotham Zav #f 3HHZ42-507-33549Zavala, TX · Exco Operating Company LPGamma RayTIFF3,125 to 15,081Dec 6, 2024
Rab #1HZ42-507-33427Zavala, TX · CML Exploration LLCGamma RayTIFF450 to 15,325Oct 31, 2024
Priest-Trinkle #7HHZ42-507-33435Zavala, TX · Buffco Production Inc.Measure While Drilling (MWD)TIFF2,777 to 14,120Oct 22, 2024
Sugar Ranch #1HZ42-507-33536Zavala, TX · CML Exploration LLCGamma RayTIFF5,952 to 13,339Oct 15, 2024
Sugar Ranch #1HZ42-507-33536Zavala, TX · CML Exploration LLCGamma RayTIFF3,000 to 11,126Oct 10, 2024
Priest-Trinkle #8HHZ42-507-33436Zavala, TX · Buffco Production Inc.Measure While Drilling (MWD)TIFF0 to 14,000Sep 23, 2024

About this data

Well logs loaded into Petrora from the regulators' log indexes, so far for Texas, with more states and data sources to follow; not necessarily every log that exists. 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. A formation is spanned where the log's filed interval overlaps it in the well's own formation tops; both are measured depths as filed, so a horizontal's lateral is counted in the formation it ends in. Kinds are read from the regulator's description of each log, not from its curves. The date is when the log entered the RRC's imaged log database; a run date is shown where the index gives a different one (mostly logs before 2017: since digital filing began that year, the index gives the filing date for both). Nothing is estimated.

Developers: this page as JSON is GET /v1/data/logs, documented in the API reference.