WELL LOGS · UNITED STATES · ONE ROW PER LOG

Well logs within 2 mi of API 42-013-34331

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.

Within0.5 mi1 mi2 mi3 mi5 mi10 mi25 miof API 42-013-34331Clear

Distances are to the nearest location on file for each well (a horizontal has several along its path), in miles. Locations are surface and path points as mapped, not bottom-hole surveys.

37 LOG FILES ON 17 WELLS · A LOG'S LAS AND IMAGE IN ONE ROW · PAGE 1 OF 1

Well DistancemiLogas describedIntervalft, as filedDatereceived
Middle McCowen #173HHZ42-013-35782Atascosa, TX · Marathon Oil EF LLC0.90Gamma RayTIFF112 to 4,654Nov 29, 2023
Middle McCowen #173HHZ42-013-35782Atascosa, TX · Marathon Oil EF LLC0.90Gamma RayTIFF112 to 18,136Mar 16, 2023
Middle McCowen #172HHZ42-013-35781Atascosa, TX · Marathon Oil EF LLC0.91Gamma RayTIFF0 to 15,352Nov 29, 2023
Middle McCowen #172HHZ42-013-35781Atascosa, TX · Marathon Oil EF LLC0.91Measure While Drilling (MWD)TIFF4,644 to 18,322Mar 30, 2023
Middle McCowen #171HHZ42-013-35780Atascosa, TX · Marathon Oil EF LLC0.91Gamma RayTIFF110 to 19,939Nov 29, 2023
Middle McCowen #171HHZ42-013-35780Atascosa, TX · Marathon Oil EF LLC0.91Measure While Drilling (MWD)TIFF4,646 to 19,939Mar 30, 2023
Middle McCowen #29HHZ42-013-34518Atascosa, TX · Marathon Oil EF LLC1.00RESISTIVITY4 TIFF6,775 to 16,355Sep 3, 2015run Jul 26, 2012
Middle McCowen #124HHZ42-013-35957Atascosa, TX · Marathon Oil EF LLC1.15Gamma RayTIFF0 to 18,931Jan 21, 2026
Middle McCowen #123HHZ42-013-35956Atascosa, TX · Marathon Oil EF LLC1.15Gamma RayTIFF0 to 18,873Jan 21, 2026
Middle McCowen #122HHZ42-013-35955Atascosa, TX · Marathon Oil EF LLC1.16Gamma RayTIFF0 to 18,670Dec 23, 2025
Middle McCowen #120HHZ42-013-35954Atascosa, TX · Marathon Oil EF LLC1.16Gamma RayTIFF0 to 18,635Dec 23, 2025
Middle McCowen #119HHZ42-013-35953Atascosa, TX · Marathon Oil EF LLC1.61Gamma RayTIFF0 to 18,774Nov 25, 2025
Middle McCowen #118HHZ42-013-35952Atascosa, TX · Marathon Oil EF LLC1.61Gamma RayTIFF0 to 18,768Nov 25, 2025
Middle McCowen #117HHZ42-013-35951Atascosa, TX · Marathon Oil EF LLC1.62Gamma RayTIFF0 to 18,639Nov 25, 2025
Middle McCowen #116HHZ42-013-35950Atascosa, TX · Marathon Oil EF LLC1.62Gamma RayLAS0 to 18,711Mar 25, 2026
Middle McCowen #116HHZ42-013-35950Atascosa, TX · Marathon Oil EF LLC1.62Gamma RayTIFF0 to 18,711Dec 23, 2025
Middle McCowen #115HHZ42-013-35949Atascosa, TX · Marathon Oil EF LLC1.63Gamma RayTIFF0 to 18,709Nov 25, 2025
Middle McCowen #8HHZ42-013-34480Atascosa, TX · Marathon Oil EF LLC1.92RESISTIVITY5 TIFF5,060 to 16,860Aug 18, 2015run Jun 13, 2012
Middle McCowen #7HHZ42-013-34478Atascosa, TX · Marathon Oil EF LLC1.94Gamma RayLAS + TIFF5,100 to 16,940Nov 14, 2017
Middle McCowen #6HHZ42-013-34477Atascosa, TX · Marathon Oil EF LLC1.95RESISTIVITY3 TIFF5,483 to 16,956Sep 3, 2015run Mar 31, 2012
Middle McCowen #6HHZ42-013-34477Atascosa, TX · Marathon Oil EF LLC1.95RESISTIVITY2 TIFF5,483 to 16,956Mar 8, 2016run Mar 23, 2012
Middle McCowen #6HHZ42-013-34477Atascosa, TX · Marathon Oil EF LLC1.95RESISTIVITYTIFF5,483 to 16,956Mar 29, 2016run Mar 31, 2012
Middle McCowen #5HHZ42-013-34476Atascosa, TX · Marathon Oil EF LLC1.97RESISTIVITY2 TIFF5,130 to 17,043Oct 7, 2015run Apr 20, 2012
Middle McCowen #5HHZ42-013-34476Atascosa, TX · Marathon Oil EF LLC1.97RESISTIVITY2 TIFF5,160 to 17,043Oct 7, 2015run Apr 20, 2012

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.