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.
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 | Distancemi | Logas described | Intervalft, as filed | Datereceived |
|---|---|---|---|---|
| UL 21 Yellowtail #1HHZ42-495-33769Winkler, TX · Apache Corporation | 0.47 | Gamma RayLAS + TIFF | 5,070 to 21,817 | Mar 2, 2020 |
| UL Bighorn D 21-31-19 #5104HHZ42-495-34008Winkler, TX · Apache Corporation | 0.50 | Gamma RayLAS + TIFF | 5,083 to 22,188 | Mar 15, 2021 |
| UL Bighorn I 21-30-19 #4209HHZ42-495-34304Winkler, TX · Apache Corporation | 0.53 | Gamma RayLAS + TIFF | 500 to 17,607 | Jun 21, 2022 |
| University BLK 21 #1810HHZ42-495-33822Winkler, TX · XTO Energy Inc. | 0.57 | Cement BondTIFF | 0 to 12,198 | Jan 14, 2021 |
| UL Bighorn J 21-30-19 #5210HHZ42-495-34305Winkler, TX · Apache Corporation | 0.59 | Gamma RayLAS + TIFF | 500 to 21,986 | Aug 3, 2022 |
| UL Bighorn K 21-30-19 #4211HHZ42-495-34306Winkler, TX · Apache Corporation | 0.65 | Gamma RayLAS + TIFF | 500 to 21,760 | Aug 3, 2022 |
| UL 21 Stampede #2HHZ42-495-33896Winkler, TX · Apache Corporation | 0.66 | Gamma RayLAS + TIFF | 5,136 to 16,736 | Dec 15, 2020 |
| UL Yellowtail D 21-29-17 TB #4HHZ42-495-34694Winkler, TX · Apache Corporation | 0.68 | Measure While Drilling (MWD)LAS + TIFF | 19,000 to 22,020 | May 29, 2025 |
| UL Yellowtail E 21-29-17 WB #5HHZ42-495-34695Winkler, TX · Apache Corporation | 0.68 | Measure While Drilling (MWD)LAS + TIFF | 10,500 to 23,471 | May 29, 2025 |
| UL Yellowtail H 21-29-17 WB #8HHZ42-495-34698Winkler, TX · Apache Corporation | 0.69 | Measure While Drilling (MWD)LAS + TIFF | 118 to 20,893 | May 29, 2025 |
| University BLK 21 #1802HHZ42-495-33526Winkler, TX · XTO Energy Inc. | 0.69 | RESISTIVITYTIFF | 3,056 to 11,351 | Dec 29, 2014run Dec 2, 2013 |
| UL Bighorn O 21-30-19 #5215HHZ42-495-34348Winkler, TX · Apache Corporation | 0.73 | Gamma RayLAS + TIFF | 12,063 to 22,103 | Jun 21, 2022 |
| University BLK 21 #1803HHZ42-495-33577Winkler, TX · XTO Energy Inc. | 0.80 | NeutronTIFF | 200 to 11,376 | Jan 23, 2018 |
| UL Bighorn C 21-30-19 #4203HHZ42-495-34257Winkler, TX · Apache Corporation | 0.80 | Gamma RayLAS + TIFF | 11,791 to 21,750 | Jul 27, 2022 |
| UL Bighorn B 21-30-19 #5202HHZ42-495-34258Winkler, TX · Apache Corporation | 0.83 | Gamma RayLAS + TIFF | 11,885 to 21,800 | Jun 21, 2022 |
| UL Bighorn N 21-30-19 #4214HHZ42-495-34345Winkler, TX · Apache Corporation | 0.93 | Gamma RayLAS + TIFF | 11,718 to 21,652 | Jul 29, 2022 |
| UL Yellowtail I 21-29-17 WA #9HHZ42-495-34699Winkler, TX · Apache Corporation | 0.97 | Measure While Drilling (MWD)LAS + TIFF | 11,000 to 22,213 | May 29, 2025 |
| UL Yellowtail J 21-29-17 TB #10HHZ42-495-34700Winkler, TX · Apache Corporation | 0.97 | Measure While Drilling (MWD)LAS + TIFF | 20,818 to 22,285 | May 29, 2025 |
| UL Yellowtail K 21-29-17 WB #11HHZ42-495-34701Winkler, TX · Apache Corporation | 0.98 | Measure While Drilling (MWD)LAS + TIFF | 11,624 to 22,866 | Aug 4, 2025 |
| UL Yellowtail L 21-19-17 TB #12HHZ42-495-34702Winkler, TX · Apache Corporation | 0.98 | Measure While Drilling (MWD)LAS + TIFF | 10,913 to 22,111 | Aug 4, 2025 |
| University BLK 21 #1801HHZ42-495-33495Winkler, TX · XTO Energy Inc. | 1.04 | NEUTRON/DENSITY POROSITYTIFF | 5,124 to 11,550 | Jul 13, 2016run May 17, 2013 |
| University BLK 20 #1311HHZ42-495-33714Winkler, TX · XTO Energy Inc. | 1.06 | Gamma RayTIFF | 0 to 11,566 | Aug 22, 2019 |
| UL Yellowtail B 21-29-17 #2HHZ42-495-33952Winkler, TX · Apache Corporation | 1.08 | Gamma RayLAS + TIFF | 4,900 to 19,999 | Jun 30, 2021 |
| UL Yellowtail C 21-29-17 TB #3HHZ42-495-34040Winkler, TX · Apache Corporation | 1.11 | MudLAS + TIFF | 5,122 to 22,470 | Apr 20, 2021 |
| UL Yellowtail 21-17 #1W42-495-34284Winkler, TX | 1.12 | ResistivityLAS + TIFF | 5,200 to 12,236 | Mar 14, 2019 |
| University 20 PW #2501HHZ42-495-34181Winkler, TX · Pdeh LLC | 1.12 | Measure While Drilling (MWD)TIFF | 0 to 16,850 | Apr 11, 2022 |
| University 20 PW #2502HHZ42-495-34182Winkler, TX · Pdeh LLC | 1.22 | Measure While Drilling (MWD)TIFF | 100 to 16,600 | Apr 11, 2022 |
| UL Elk Park 21-21 #1HHZ42-495-33770Winkler, TX · WPX Energy Permian LLC | 1.23 | MudLAS + TIFF | 4,428 to 16,963 | Sep 22, 2021 |
| University 21-21 #142-495-34045Winkler, TX · Pilot Water Gath Delaware LLC | 1.31 | DensityTIFF | 842 to 6,584 | Apr 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.