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.

209 LOG FILES ON 197 WELLS · A LOG'S LAS AND IMAGE IN ONE ROW · PAGE 1 OF 5

Well Logas describedIntervalft, as filedDatereceived
Cenizo a #126HHZ42-507-33417Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)LAS0 to 18,971Sep 10, 2026
Cenizo a #104HHZ42-507-33497Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)LAS0 to 18,026Sep 10, 2026
Glasscock Ranch C #A100HHZ42-507-33507Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)LAS105 to 18,158Sep 10, 2026
Glasscock Ranch C #a 98HHZ42-507-33505Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)LAS0 to 16,252Aug 7, 2026
Glasscock Ranch C #B101HHZ42-507-33500Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)LAS0 to 18,142Jul 9, 2026
Glasscock Ranch C #B102HHZ42-507-33501Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)LAS0 to 18,472Jul 9, 2026
Cenizo a #125HHZ42-507-33416Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)LAS0 to 19,018May 5, 2026
Cenizo a #129HHZ42-507-33478Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)LAS0 to 19,535May 5, 2026
Cenizo a #105HHZ42-507-33498Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)LAS0 to 18,140May 5, 2026
Cenizo a #106HHZ42-507-33499Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)LAS0 to 17,114May 5, 2026
Cenizo a #126HHZ42-507-33417Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)LAS0 to 18,971Apr 17, 2026
Glasscock Ranch C #E113HHZ42-507-33487Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)LAS0 to 18,065Apr 17, 2026
Glasscock Ranch C #E114HHZ42-507-33488Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)LAS0 to 16,941Apr 17, 2026
KM Ranch a Allocation 2 #105HHZ42-507-33493Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)LAS0 to 18,163Apr 17, 2026
KM Ranch a Allocation 3 #106HHZ42-507-33494Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)LAS0 to 18,275Apr 17, 2026
KM Ranch a Allocation 4 #201HAHZ42-507-33495Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)LAS0 to 15,241Apr 17, 2026
Glasscock Ranch C #D110HHZ42-507-33484Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)LAS0 to 18,534Feb 4, 2026
Glasscock Allocation 2 #F124HHZ42-507-33455Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)2 LAS0 to 17,884Aug 12, 2025
Glasscock Allocation 3 #F125HHZ42-507-33456Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)2 LAS0 to 18,098Jul 30, 2025
Glasscock Ranch C #107HHZ42-507-33458Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)2 LAS0 to 17,567Jul 22, 2025
Glasscock Ranch C #106HHZ42-507-33457Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)2 LAS0 to 17,779Jul 21, 2025
Glasscock Allocation 1 #F123HHZ42-507-33454Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)2 LAS0 to 17,897Jul 11, 2025
Glasscock Ranch C #105HHZ42-507-33453Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)2 LAS0 to 17,772Jun 13, 2025
Cenizo a #134HHZ42-507-33443Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)LAS0 to 20,849Mar 18, 2025
Cenizo a #135HHZ42-507-33444Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)LAS0 to 18,665Mar 18, 2025
Cenizo a #136HHZ42-507-33446Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)2 LAS0 to 18,541Mar 18, 2025
Cenizo a #137HHZ42-507-33445Zavala, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)LAS0 to 1,855Feb 7, 2025
Winterbotham Zav #g 4HHZ42-507-33548Zavala, TX · Exco Operating Company LPGamma RayLAS3,125 to 15,249Dec 6, 2024
Winterbotham Zav #f 3HHZ42-507-33549Zavala, TX · Exco Operating Company LPGamma RayLAS3,125 to 15,081Dec 6, 2024
Sugar Ranch #1HZ42-507-33536Zavala, TX · CML Exploration LLCGamma RayLAS5,952 to 13,339Oct 15, 2024
Sugar Ranch #1HZ42-507-33536Zavala, TX · CML Exploration LLCGamma RayLAS3,000 to 11,126Oct 10, 2024
Beeler #16REHZ42-507-33128Zavala, TX · CML Exploration LLCGamma RayLAS5,812 to 10,804Aug 23, 2024
Traylor North #c 2HHZ42-507-33474Zavala, TX · Exco Operating Company LPGamma RayLAS2,491 to 13,848Apr 15, 2024
Traylor North #c 3HHZ42-507-33475Zavala, TX · Exco Operating Company LPGamma RayLAS2,681 to 16,550Apr 15, 2024
Tidwell Unit Zav a #2HHZ42-507-33527Zavala, TX · Exco Operating Company LPGamma RayLAS2,663 to 13,344Mar 25, 2024
Traylor North #3HHZ42-507-33476Zavala, TX · Exco Operating Company LPGamma RayLAS2,580 to 15,111Mar 20, 2024
Tidwell Unit Zav a #1HHZ42-507-33526Zavala, TX · Exco Operating Company LPGamma RayLAS2,658 to 13,127Mar 20, 2024
Tidwell Unit Zav C #3HHZ42-507-33528Zavala, TX · Exco Operating Company LPGamma RayLAS2,658 to 15,679Mar 20, 2024
Tidwell-Howett Unit Zav #1HHZ42-507-33518Zavala, TX · Exco Operating Company LPGamma RayLAS3,018 to 19,050Mar 6, 2024
Traylor South Zav #e 2HHZ42-507-33525Zavala, TX · Exco Operating Company LPGamma RayLAS2,971 to 13,874Mar 6, 2024
Traylor North #b 3HHZ42-507-33472Zavala, TX · Exco Operating Company LPGamma RayLAS2,875 to 15,222Feb 29, 2024
Traylor North #b 4HHZ42-507-33473Zavala, TX · Exco Operating Company LPGamma RayLAS2,875 to 15,275Feb 29, 2024
Traylor North #b 1HHZ42-507-33470Zavala, TX · Exco Operating Company LPGamma RayLAS2,840 to 15,766Feb 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.