WELL LOGS · UNITED STATES · ONE ROW PER LOG

Well logs within 2 mi of API 42-495-34278

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 42-495-34278Clear

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.

83 LOG FILES ON 49 WELLS · A LOG'S LAS AND IMAGE IN ONE ROW · PAGE 1 OF 2

Well DistancemiLogas describedIntervalft, as filedDatereceived
UL 21 Yellowtail #1HHZ42-495-33769Winkler, TX · Apache Corporation0.47Gamma RayLAS + TIFF5,070 to 21,817Mar 2, 2020
UL Bighorn D 21-31-19 #5104HHZ42-495-34008Winkler, TX · Apache Corporation0.50Gamma RayLAS + TIFF5,083 to 22,188Mar 15, 2021
UL Bighorn I 21-30-19 #4209HHZ42-495-34304Winkler, TX · Apache Corporation0.53Gamma RayLAS + TIFF500 to 17,607Jun 21, 2022
University BLK 21 #1810HHZ42-495-33822Winkler, TX · XTO Energy Inc.0.57Cement BondTIFF0 to 12,198Jan 14, 2021
UL Bighorn J 21-30-19 #5210HHZ42-495-34305Winkler, TX · Apache Corporation0.59Gamma RayLAS + TIFF500 to 21,986Aug 3, 2022
UL Bighorn K 21-30-19 #4211HHZ42-495-34306Winkler, TX · Apache Corporation0.65Gamma RayLAS + TIFF500 to 21,760Aug 3, 2022
UL 21 Stampede #2HHZ42-495-33896Winkler, TX · Apache Corporation0.66Gamma RayLAS + TIFF5,136 to 16,736Dec 15, 2020
UL Yellowtail D 21-29-17 TB #4HHZ42-495-34694Winkler, TX · Apache Corporation0.68Measure While Drilling (MWD)LAS + TIFF19,000 to 22,020May 29, 2025
UL Yellowtail E 21-29-17 WB #5HHZ42-495-34695Winkler, TX · Apache Corporation0.68Measure While Drilling (MWD)LAS + TIFF10,500 to 23,471May 29, 2025
UL Yellowtail H 21-29-17 WB #8HHZ42-495-34698Winkler, TX · Apache Corporation0.69Measure While Drilling (MWD)LAS + TIFF118 to 20,893May 29, 2025
University BLK 21 #1802HHZ42-495-33526Winkler, TX · XTO Energy Inc.0.69RESISTIVITYTIFF3,056 to 11,351Dec 29, 2014run Dec 2, 2013
UL Bighorn O 21-30-19 #5215HHZ42-495-34348Winkler, TX · Apache Corporation0.73Gamma RayLAS + TIFF12,063 to 22,103Jun 21, 2022
University BLK 21 #1803HHZ42-495-33577Winkler, TX · XTO Energy Inc.0.80NeutronTIFF200 to 11,376Jan 23, 2018
UL Bighorn C 21-30-19 #4203HHZ42-495-34257Winkler, TX · Apache Corporation0.80Gamma RayLAS + TIFF11,791 to 21,750Jul 27, 2022
UL Bighorn B 21-30-19 #5202HHZ42-495-34258Winkler, TX · Apache Corporation0.83Gamma RayLAS + TIFF11,885 to 21,800Jun 21, 2022
UL Bighorn N 21-30-19 #4214HHZ42-495-34345Winkler, TX · Apache Corporation0.93Gamma RayLAS + TIFF11,718 to 21,652Jul 29, 2022
UL Yellowtail I 21-29-17 WA #9HHZ42-495-34699Winkler, TX · Apache Corporation0.97Measure While Drilling (MWD)LAS + TIFF11,000 to 22,213May 29, 2025
UL Yellowtail J 21-29-17 TB #10HHZ42-495-34700Winkler, TX · Apache Corporation0.97Measure While Drilling (MWD)LAS + TIFF20,818 to 22,285May 29, 2025
UL Yellowtail K 21-29-17 WB #11HHZ42-495-34701Winkler, TX · Apache Corporation0.98Measure While Drilling (MWD)LAS + TIFF11,624 to 22,866Aug 4, 2025
UL Yellowtail L 21-19-17 TB #12HHZ42-495-34702Winkler, TX · Apache Corporation0.98Measure While Drilling (MWD)LAS + TIFF10,913 to 22,111Aug 4, 2025
University BLK 21 #1801HHZ42-495-33495Winkler, TX · XTO Energy Inc.1.04NEUTRON/DENSITY POROSITYTIFF5,124 to 11,550Jul 13, 2016run May 17, 2013
University BLK 20 #1311HHZ42-495-33714Winkler, TX · XTO Energy Inc.1.06Gamma RayTIFF0 to 11,566Aug 22, 2019
UL Yellowtail B 21-29-17 #2HHZ42-495-33952Winkler, TX · Apache Corporation1.08Gamma RayLAS + TIFF4,900 to 19,999Jun 30, 2021
UL Yellowtail C 21-29-17 TB #3HHZ42-495-34040Winkler, TX · Apache Corporation1.11MudLAS + TIFF5,122 to 22,470Apr 20, 2021
UL Yellowtail 21-17 #1W42-495-34284Winkler, TX1.12ResistivityLAS + TIFF5,200 to 12,236Mar 14, 2019
University 20 PW #2501HHZ42-495-34181Winkler, TX · Pdeh LLC1.12Measure While Drilling (MWD)TIFF0 to 16,850Apr 11, 2022
University 20 PW #2502HHZ42-495-34182Winkler, TX · Pdeh LLC1.22Measure While Drilling (MWD)TIFF100 to 16,600Apr 11, 2022
UL Elk Park 21-21 #1HHZ42-495-33770Winkler, TX · WPX Energy Permian LLC1.23MudLAS + TIFF4,428 to 16,963Sep 22, 2021
University 21-21 #142-495-34045Winkler, TX · Pilot Water Gath Delaware LLC1.31DensityTIFF842 to 6,584Apr 29, 2026

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.