WELL LOGS · UNITED STATES · ONE ROW PER LOG
Well logs within 2 mi of Middle McCowen #5H (42-013-34476)
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.
204 LOG FILES ON 89 WELLS · A LOG'S LAS AND IMAGE IN ONE ROW · PAGE 1 OF 5
| Well | Distancemi | Logas described | Intervalft, as filed | Datereceived |
|---|---|---|---|---|
| 74-Atascosa SA 1 #1HHZ42-013-35821Atascosa, TX · Marathon Oil EF LLC | 0.17 | Gamma RayTIFF | 9,800 to 18,669 | Apr 1, 2024 |
| 74-Atascosa SA 2 #2HHZ42-013-35823Atascosa, TX · Marathon Oil EF LLC | 0.17 | Gamma RayTIFF | 5,239 to 17,956 | Feb 22, 2024 |
| 74-Atascosa Unit 1 #13HHZ42-013-35824Atascosa, TX · Marathon Oil EF LLC | 0.17 | Gamma RayTIFF | 5,238 to 17,443 | Feb 22, 2024 |
| 74 Ranch-Guajillo Unit a #4HHZ42-297-35981Live Oak, TX · Marathon Oil EF LLC | 0.56 | Gamma RayTIFF | 7,055 to 18,184 | Apr 11, 2022 |
| 74 Ranch-Guajillo Unit a #4HHZ42-297-35981Live Oak, TX · Marathon Oil EF LLC | 0.56 | Gamma RayTIFF | 7,055 to 18,184 | Jun 27, 2022 |
| 74 Ranch Unit S1 #1HHZ42-013-35763Atascosa, TX · Marathon Oil EF LLC | 0.58 | Gamma RayTIFF | 0 to 18,724 | Jul 31, 2024 |
| 74 Ranch Unit S1 #1HHZ42-013-35763Atascosa, TX · Marathon Oil EF LLC | 0.58 | Gamma RayTIFF | 9,800 to 18,669 | May 9, 2024 |
| 74 Ranch Unit S1 #2HHZ42-013-35764Atascosa, TX · Marathon Oil EF LLC | 0.58 | Gamma RayTIFF | 0 to 18,447 | Jul 31, 2024 |
| 74 Ranch Unit S1 #2HHZ42-013-35764Atascosa, TX · Marathon Oil EF LLC | 0.58 | Gamma RayTIFF | 0 to 18,724 | Jul 31, 2024 |
| 74 Ranch Unit S1 #2HHZ42-013-35764Atascosa, TX · Marathon Oil EF LLC | 0.58 | Gamma RayTIFF | 9,800 to 18,393 | May 9, 2024 |
| 74 Ranch Unit S1 #3HHZ42-013-35765Atascosa, TX · Marathon Oil EF LLC | 0.58 | Gamma RayTIFF | 5,300 to 18,405 | May 9, 2024 |
| 74 Ranch Unit S1 #4HHZ42-013-35766Atascosa, TX · Marathon Oil EF LLC | 0.59 | Gamma RayTIFF | 0 to 18,445 | Apr 1, 2024 |
| 74 Ranch-Guajillo Unit a AC #1HHZ42-297-35982Live Oak, TX · Marathon Oil EF LLC | 0.59 | Gamma RayTIFF | 7,056 to 17,964 | Jun 27, 2022 |
| 74 Ranch-Guajillo Unit a AC #1HHZ42-297-35982Live Oak, TX · Marathon Oil EF LLC | 0.59 | Gamma RayTIFF | 7,056 to 17,964 | Mar 16, 2022 |
| 74 Ranch Unit S1 #5HHZ42-013-35767Atascosa, TX · Marathon Oil EF LLC | 0.59 | Gamma RayTIFF | 5,350 to 18,445 | Apr 1, 2024 |
| 74 Ranch-Guajillo Unit a #3HHZ42-297-35980Live Oak, TX · Marathon Oil EF LLC | 0.61 | Gamma RayTIFF | 7,150 to 18,121 | Mar 16, 2022 |
| 74 Ranch-Guajillo Unit a #3HHZ42-297-35980Live Oak, TX · Marathon Oil EF LLC | 0.61 | Gamma RayTIFF | 7,150 to 18,121 | Jun 27, 2022 |
| 74 Ranch-Guajillo Unit a #2HHZ42-297-35979Live Oak, TX · Marathon Oil EF LLC | 0.67 | Gamma RayTIFF | 7,055 to 18,215 | Mar 16, 2022 |
| 74 Ranch-Guajillo Unit a #2HHZ42-297-35979Live Oak, TX · Marathon Oil EF LLC | 0.67 | Gamma RayTIFF | 7,055 to 18,215 | May 23, 2022 |
| 74 Ranch-Guajillo Unit a #1HHZ42-297-35978Live Oak, TX · Marathon Oil EF LLC | 0.73 | Gamma RayTIFF | 7,055 to 18,181 | Jun 27, 2022 |
| 74 Ranch-Guajillo Unit a #1HHZ42-297-35978Live Oak, TX · Marathon Oil EF LLC | 0.73 | Gamma RayTIFF | 7,055 to 18,181 | Mar 16, 2022 |
| Middle McCowen #39HHZ42-013-34677Atascosa, TX · Marathon Oil EF LLC | 1.11 | RESISTIVITYTIFF | 9,950 to 17,445 | Jun 29, 2016run Apr 19, 2013 |
| Middle McCowen #7HHZ42-013-34478Atascosa, TX · Marathon Oil EF LLC | 1.14 | Gamma RayLAS + TIFF | 5,100 to 16,940 | Nov 14, 2017 |
| Middle McCowen #6HHZ42-013-34477Atascosa, TX · Marathon Oil EF LLC | 1.14 | RESISTIVITY3 TIFF | 5,483 to 16,956 | Sep 3, 2015run Mar 31, 2012 |
| Middle McCowen #6HHZ42-013-34477Atascosa, TX · Marathon Oil EF LLC | 1.14 | RESISTIVITY2 TIFF | 5,483 to 16,956 | Mar 8, 2016run Mar 23, 2012 |
| Middle McCowen #6HHZ42-013-34477Atascosa, TX · Marathon Oil EF LLC | 1.14 | RESISTIVITYTIFF | 5,483 to 16,956 | Mar 29, 2016run Mar 31, 2012 |
| Middle McCowen #5HHZ42-013-34476Atascosa, TX · Marathon Oil EF LLC | 1.15 | RESISTIVITY2 TIFF | 5,130 to 17,043 | Oct 7, 2015run Apr 20, 2012 |
| Middle McCowen #5HHZ42-013-34476Atascosa, TX · Marathon Oil EF LLC | 1.15 | RESISTIVITY2 TIFF | 5,160 to 17,043 | Oct 7, 2015run Apr 20, 2012 |
| Middle McCowen #8HHZ42-013-34480Atascosa, TX · Marathon Oil EF LLC | 1.16 | RESISTIVITY5 TIFF | 5,060 to 16,860 | Aug 18, 2015run Jun 13, 2012 |
| 74 Ranch Unit S2 #1HHZ42-013-35875Atascosa, TX · Marathon Oil EF LLC | 1.16 | Gamma RayTIFF | 0 to 22,199 | Jul 30, 2025 |
| 74 Ranch Unit S2 #1HHZ42-013-35875Atascosa, TX · Marathon Oil EF LLC | 1.16 | Gamma RayLAS + TIFF | 9,800 to 22,202 | Apr 30, 2025 |
| 74 Ranch Unit S2 #2HHZ42-013-35876Atascosa, TX · Marathon Oil EF LLC | 1.17 | Gamma RayTIFF | 0 to 22,308 | Jul 30, 2025 |
| 74 Ranch Unit S2 #2HHZ42-013-35876Atascosa, TX · Marathon Oil EF LLC | 1.17 | Gamma RayLAS + TIFF | 9,800 to 22,308 | Apr 30, 2025 |
| 74 Ranch Unit S2 #3HHZ42-013-35877Atascosa, TX · Marathon Oil EF LLC | 1.17 | Gamma RayTIFF | 0 to 22,265 | Aug 15, 2025 |
| 74 Ranch Unit S2 #3HHZ42-013-35877Atascosa, TX · Marathon Oil EF LLC | 1.17 | Gamma RayLAS + TIFF | 9,800 to 22,266 | Apr 30, 2025 |
| Middle McCowen #38HHZ42-013-34676Atascosa, TX · Marathon Oil EF LLC | 1.17 | RESISTIVITYTIFF | 9,950 to 17,328 | Jun 29, 2016run May 4, 2013 |
| 74 Ranch Unit S2 #4HHZ42-013-35878Atascosa, TX · Marathon Oil EF LLC | 1.17 | Gamma RayTIFF | 0 to 22,295 | Jul 31, 2025 |
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.