WELL LOGS · UNITED STATES · ONE ROW PER LOG
Well logs within 2 mi of API 42-329-32222
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.
133 LOG FILES ON 110 WELLS · A LOG'S LAS AND IMAGE IN ONE ROW · PAGE 1 OF 3
| Well | Distancemi | Logas described | Intervalft, as filed | Datereceived |
|---|---|---|---|---|
| TXL R #742-329-37922Midland, TX · COG Operating LLC | 0.07 | NEUTRON POROSITYTIFF | 4,000 to 10,913 | Jan 25, 2016run Dec 13, 2012 |
| Holzgraf Ora B #541042-329-37921Midland, TX · COG Operating LLC | 0.20 | NEUTRON POROSITYTIFF | 4,000 to 10,994 | Jul 20, 2015run Jul 13, 2012 |
| TXL R #542-329-35825Midland, TX · COG Operating LLC | 0.33 | NEUTRON POROSITYTIFF | 4,000 to 10,378 | Mar 1, 2011run Jan 29, 2008 |
| State Glass #21342-329-37984Midland, TX · COG Operating LLC | 0.34 | NEUTRON POROSITYTIFF | 4,000 to 10,916 | Jul 20, 2015run Aug 4, 2012 |
| TXL State R A4 #302BHHZ42-329-42931Midland, TX · COG Operating LLC | 0.42 | NeutronTIFF | — | Mar 16, 2022 |
| TXL State R A2 #301BHHZ42-329-42928Midland, TX · COG Operating LLC | 0.42 | NeutronTIFF | 0 to 9,673 | Apr 5, 2022 |
| TXL State R A1 #301LHHZ42-329-42927Midland, TX · COG Operating LLC | 0.42 | NeutronTIFF | 0 to 9,065 | Apr 5, 2022 |
| State Glass #21042-329-36814Midland, TX · COG Operating LLC | 0.49 | NEUTRON POROSITYTIFF | 4,000 to 10,962 | Oct 11, 2013run Nov 9, 2010 |
| Holzgraf Ora B #541142-329-38145Midland, TX · COG Operating LLC | 0.53 | NEUTRON POROSITYTIFF | 4,000 to 10,973 | Aug 13, 2015run Aug 2, 2012 |
| Pegasus Field Unit 3 #21142-329-37975Midland, TX · COG Operating LLC | 0.56 | NEUTRON POROSITYTIFF | 4,000 to 11,010 | Jun 9, 2015run Jun 19, 2012 |
| TXL U #50442-329-37923Midland, TX · COG Operating LLC | 0.56 | NEUTRON POROSITYTIFF | 4,000 to 10,938 | Dec 9, 2015run Nov 28, 2012 |
| Pegasus Field Unit 3 #5505LHHZ42-329-41048Midland, TX · COG Operating LLC | 0.57 | NeutronTIFF | 0 to 9,090 | Nov 20, 2019 |
| Pegasus Field Unit 3 #40642-329-38080Midland, TX · COG Operating LLC | 0.58 | NEUTRON POROSITYTIFF | 4,000 to 10,957 | Jun 9, 2015run Jun 29, 2012 |
| Pegasus Field Unit 3 #5505BHHZ42-329-41050Midland, TX · COG Operating LLC | 0.58 | NeutronTIFF | 0 to 9,845 | Nov 20, 2019 |
| Pegasus Field Unit 3 #614HHZ42-461-39588Upton, TX · COG Operating LLC | 0.65 | NeutronTIFF | 4,000 to 9,670 | Sep 20, 2017 |
| Pegasus Field Unit 3 #5506LHHZ42-329-41059Midland, TX · COG Operating LLC | 0.69 | NeutronTIFF | 0 to 9,050 | Oct 18, 2019 |
| TXL State U A3 #502LHHZ42-461-40979Upton, TX · COG Operating LLC | 0.73 | NeutronTIFF | — | Apr 5, 2022 |
| TXL State U A6 #503BHHZ42-461-40997Upton, TX · COG Operating LLC | 0.73 | Gamma RayTIFF | 0 to 9,665 | May 9, 2022 |
| TXL State U A5 #503LHHZ42-461-40980Upton, TX · COG Operating LLC | 0.74 | NeutronTIFF | 0 to 9,116 | May 9, 2022 |
| Holzgraf Ora B #540642-329-35698Midland, TX · COG Operating LLC | 0.76 | NEUTRON POROSITYTIFF | 3,000 to 10,422 | May 27, 2010run Jun 5, 2007 |
| Pegasus Field Unit 3 #22142-329-37042Midland, TX · COG Operating LLC | 0.77 | NEUTRON POROSITYTIFF | 4,000 to 10,922 | Apr 7, 2014run May 2, 2011 |
| State Glass #21242-329-36963Midland, TX · COG Operating LLC | 0.78 | NEUTRON POROSITYTIFF | 4,000 to 11,036 | Mar 13, 2014run Mar 25, 2011 |
| Pegasus Field Unit 3 #5507LHHZ42-329-41064Midland, TX · COG Operating LLC | 0.80 | NeutronTIFF | 0 to 9,154 | Nov 20, 2019 |
| TXL U #50142-461-03349Upton, TX · COG Operating LLC | 0.81 | Neutron PorosityTIFFC.P.N.L. | 6,750 to 10,033 | Dec 14, 2006run Nov 10, 2003 |
| TXL State U A7 #504LHHZ42-461-40977Upton, TX · COG Operating LLC | 0.82 | NeutronTIFF | 0 to 9,047 | Apr 5, 2022 |
| TXL State U A8 #504BHHZ42-461-40978Upton, TX · COG Operating LLC | 0.83 | NeutronTIFF | — | Apr 5, 2022 |
| Holzgraf Ora B #540742-461-35524Upton, TX · COG Operating LLC | 0.91 | NEUTRON POROSITYTIFF | 3,000 to 10,517 | Nov 22, 2010run Nov 29, 2007 |
| TXL State Y13 #2501MHHZ42-461-42127Upton, TX · COG Operating LLC | 0.94 | Gamma RayTIFF | 0 to 8,514 | Nov 26, 2025 |
| TXL State Y14 #2502MHHZ42-461-42128Upton, TX · COG Operating LLC | 0.95 | Gamma RayTIFF | 0 to 8,397 | Nov 26, 2025 |
| TXL State Y15 #2503MHHZ42-461-42125Upton, TX · COG Operating LLC | 0.95 | Gamma RayTIFF | 0 to 8,592 | Nov 26, 2025 |
| Pegasus Field Unit 3 #61042-329-38201Midland, TX · COG Operating LLC | 0.97 | NEUTRON POROSITYTIFF | 4,000 to 10,773 | Dec 7, 2015run Nov 29, 2012 |
| TXL Holzgraf Y12R #2606MHHZ42-461-42219Upton, TX · COG Operating LLC | 0.99 | NeutronTIFF | 0 to 8,522 | Jan 29, 2026 |
| TXL Holzgraf Y11 #2605MHHZ42-461-42124Upton, TX · COG Operating LLC | 0.99 | Gamma RayTIFF | 461 to 18,913 | Dec 23, 2025 |
| Pegasus Field Unit 3 #172742-461-38004Upton, TX · COG Operating LLC | 1.03 | NEUTRON POROSITYTIFF | 4,000 to 10,947 | Jul 27, 2015run Jul 17, 2012 |
| State Glass #20942-329-35824Midland, TX · COG Operating LLC | 1.03 | NEUTRON POROSITYTIFF | 4,000 to 10,356 | Mar 1, 2011run Jan 24, 2008 |
| State Glass #21142-329-36962Midland, TX · COG Operating LLC | 1.04 | NEUTRON POROSITYTIFF | 4,000 to 11,047 | Feb 5, 2014run Mar 4, 2011 |
| Pegasus Field Unit 3 #16742-329-38360Midland, TX · COG Operating LLC | 1.12 | NEUTRON POROSITYTIFF | 4,000 to 10,799 | May 5, 2014run Jan 16, 2013 |
| Muriel #560242-461-38990Upton, TX · COG Operating LLC | 1.14 | NEUTRON POROSITYTIFF | 4,000 to 10,454 | Nov 11, 2016run Dec 11, 2013 |
| Holzgraf Ora B #540842-461-37052Upton, TX · COG Operating LLC | 1.16 | NEUTRON POROSITYTIFF | 4,000 to 11,085 | Mar 22, 2012run Jan 6, 2011 |
| TXL Holzgraf Y9 #2604MHHZ42-461-42116Upton, TX · COG Operating LLC | 1.17 | Gamma RayTIFF | 461 to 19,014 | Dec 23, 2025 |
| TXL Holzgraf Y10 #2604LHHZ42-461-42117Upton, TX · COG Operating LLC | 1.18 | Gamma RayTIFF | 463 to 19,556 | Dec 23, 2025 |
| TXL Holzgraf Y7 #2603MHHZ42-461-42114Upton, TX · COG Operating LLC | 1.18 | Gamma RayTIFF | 466 to 18,986 | Dec 23, 2025 |
| TXL Holzgraf Y8 #2603BHHZ42-461-42115Upton, TX · COG Operating LLC | 1.18 | Gamma RayTIFF | 0 to 20,031 | Nov 26, 2025 |
| TXL Holzgraf Z2 #2306BHHZ42-329-44615Midland, TX · COG Operating LLC | 1.21 | NeutronTIFF | — | Feb 19, 2024 |
| Pegasus Field Unit 3 #21342-329-38730Midland, TX · COG Operating LLC | 1.23 | NEUTRON POROSITYTIFF | 4,000 to 10,875 | Sep 7, 2016run Jul 25, 2013 |
| Canon #442-329-37584Midland, TX · Apache Corporation | 1.24 | NEUTRON POROSITYTIFF | 4,500 to 10,522 | Dec 22, 2014run Oct 20, 2011 |
| Pegasus Field Unit 3 #71242-329-00895Midland, TX · COG Operating LLC | 1.26 | NEUTRON POROSITYTIFF | 6,900 to 10,030 | Oct 6, 2008run Jul 22, 2005 |
| TXL Holzgraf Z3 #2306LHHZ42-329-44613Midland, TX · COG Operating LLC | 1.26 | Gamma RayLAS + TIFF | 0 to 9,078 | Apr 4, 2024 |
| TXL Holzgraf Z4 #2315LHHZ42-329-44612Midland, TX · COG Operating LLC | 1.27 | Gamma RayLAS | 0 to 9,171 | Feb 19, 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.