WELL LOGS · UNITED STATES · ONE ROW PER LOG
Well logs within 2 mi of HASEL28 #2 (42-461-38331)
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.
130 LOG FILES ON 115 WELLS · A LOG'S LAS AND IMAGE IN ONE ROW · PAGE 1 OF 3
| Well | Distancemi | Logas described | Intervalft, as filed | Datereceived |
|---|---|---|---|---|
| HASEL28 #242-461-38331Upton, TX · COG Operating LLC | here | NEUTRON POROSITYTIFF | 4,000 to 10,191 | Nov 4, 2015run Nov 8, 2012 |
| HASEL28 #142-461-34806Upton, TX · COG Operating LLC | 0.29 | NEUTRON POROSITYTIFF | 4,000 to 10,083 | Sep 30, 2008run Jul 11, 2005 |
| LYNCH28 #142-461-34777Upton, TX · COG Operating LLC | 0.34 | NEUTRON POROSITYTIFF | 4,000 to 10,200 | Oct 14, 2008run Sep 15, 2005 |
| COWDEN29 #242-461-36334Upton, TX · COG Operating LLC | 0.38 | NEUTRON POROSITYTIFF | 4,000 to 10,086 | Sep 25, 2012run Oct 6, 2009 |
| ANN29 #242-461-36263Upton, TX · COG Operating LLC | 0.40 | NEUTRON POROSITYTIFF | 4,000 to 10,174 | Apr 19, 2012run Apr 14, 2009 |
| COWDEN28 #242-461-36908Upton, TX · COG Operating LLC | 0.49 | NEUTRON POROSITYTIFF | 4,000 to 10,217 | Feb 8, 2012run Nov 5, 2010 |
| COWDEN29 #142-461-34937Upton, TX · COG Operating LLC | 0.49 | NEUTRON/DENSITY POROSITYTIFF | 4,000 to 10,271 | Nov 19, 2008run Nov 22, 2005 |
| LYNCH55 #142-461-35320Upton, TX · COG Operating LLC | 0.50 | SURVEYS CASED HOLETIFF | 4,000 to 10,100 | Jun 22, 2010run Jun 13, 2007 |
| LYNCH28 #242-461-37235Upton, TX · COG Operating LLC | 0.50 | NEUTRON POROSITYTIFF | 4,000 to 10,970 | Apr 7, 2014run May 10, 2011 |
| Klondike B3 #2903BHHZ42-461-42327Upton, TX · COG Operating LLC | 0.53 | NeutronTIFF | 8,029 to 19,220 | May 19, 2026 |
| Klondike A3 #2905BHHZ42-461-42324Upton, TX · COG Operating LLC | 0.54 | NeutronTIFF | 8,037 to 19,259 | May 19, 2026 |
| Klondike A2 #2903LHHZ42-461-42323Upton, TX · COG Operating LLC | 0.54 | NeutronTIFF | 7,273 to 18,296 | Mar 6, 2026 |
| Klondike A1 #2903MHHZ42-461-42322Upton, TX · COG Operating LLC | 0.54 | NeutronTIFF | 6,733 to 18,074 | May 20, 2026 |
| HASEL28 Unit #2801AHHZ42-461-40368Upton, TX · COG Operating LLC | 0.58 | NeutronTIFF | — | Sep 23, 2019 |
| HASEL28 Unit #2802BHHZ42-461-40370Upton, TX · COG Operating LLC | 0.60 | NeutronTIFF | — | Sep 23, 2019 |
| COWDEN28 Unit #2802BHHZ42-461-40380Upton, TX · COG Operating LLC | 0.60 | NeutronTIFF | 0 to 8,996 | Aug 20, 2019 |
| MANN56 #242-461-35373Upton, TX · Diamondback E&P LLC | 0.68 | NEUTRON POROSITYTIFF | 4,000 to 10,141 | Jul 21, 2010run Jul 31, 2007 |
| ANN29 #142-461-34545Upton, TX · COG Operating LLC | 0.71 | Neutron PorosityTIFFC.P.N.L. | 4,000 to 10,254 | Feb 20, 2008run Aug 4, 2004 |
| MANN28 #142-461-31960Upton, TX · COG Operating LLC | 0.72 | NEUTRON POROSITYTIFF | 4,000 to 10,296 | May 16, 2016run Apr 30, 2013 |
| MANN55 #142-461-35404Upton, TX · COG Operating LLC | 0.75 | SURVEYS CASED HOLETIFF | 4,000 to 10,102 | Oct 1, 2010run Sep 21, 2007 |
| HASEL15 #242-461-37840Upton, TX · COG Operating LLC | 0.75 | NEUTRON POROSITYTIFF | 4,000 to 10,100 | May 27, 2015run May 15, 2012 |
| MANN15 P1 Unit #1501BHHZ42-461-40350Upton, TX · COG Operating LLC | 0.77 | NeutronTIFF | 0 to 9,256 | Aug 20, 2019 |
| MANN56 #142-461-35452Upton, TX · Diamondback E&P LLC | 0.77 | NEUTRON POROSITYTIFF | 4,000 to 10,098 | Nov 22, 2010run Nov 16, 2007 |
| COWDEN28 #142-461-34938Upton, TX · COG Operating LLC | 0.77 | NEUTRON POROSITYTIFF | 4,000 to 10,218 | Jan 16, 2009run Dec 12, 2005 |
| MANN28 #242-461-35224Upton, TX · COG Operating LLC | 0.78 | SURVEYS CASED HOLETIFF | 4,000 to 10,225 | Jan 21, 2010run Jan 25, 2007 |
| Ellie #141542-461-36305Upton, TX · COG Operating LLC | 0.80 | RESISTIVITYTIFF | 5,800 to 10,205 | Sep 4, 2013run Jun 29, 2009 |
| HASEL29 #242-461-38118Upton, TX · COG Operating LLC | 0.81 | NEUTRON POROSITYTIFF | 4,000 to 10,244 | Aug 17, 2015run Aug 13, 2012 |
| LYNCH29 #242-461-36088Upton, TX · COG Operating LLC | 0.82 | NEUTRON POROSITYTIFF | 4,000 to 10,183 | Oct 19, 2011run Oct 31, 2008 |
| LYNCH55 #242-461-36306Upton, TX · COG Operating LLC | 0.86 | NEUTRON POROSITYTIFF | 4,000 to 10,140 | Aug 6, 2012run Jul 13, 2009 |
| HASEL15 #142-461-35099Upton, TX · COG Operating LLC | 0.89 | RESISTIVITYTIFF | 4,000 to 10,302 | Aug 28, 2009run Aug 23, 2006 |
| Ellie #140742-461-38784Upton, TX · COG Operating LLC | 0.92 | NEUTRON POROSITYTIFF | 4,000 to 10,281 | Aug 31, 2016run Jun 14, 2013 |
| Klondike B5 #2902BHHZ42-461-42338Upton, TX · COG Operating LLC | 1.02 | NeutronTIFF | 7,879 to 19,088 | Mar 6, 2026 |
| LYNCH27 #242-461-38308Upton, TX · COG Operating LLC | 1.02 | NEUTRON POROSITYTIFF | 4,000 to 10,278 | Sep 16, 2015run Sep 25, 2012 |
| Klondike J1 #2902JHHZ42-461-42331Upton, TX · COG Operating LLC | 1.02 | NeutronTIFF | 6,933 to 18,290 | Mar 6, 2026 |
| HASEL29 #142-461-35396Upton, TX · COG Operating LLC | 1.02 | NEUTRON POROSITYTIFF | 4,000 to 10,164 | Aug 23, 2010run Aug 8, 2007 |
| Klondike B6 #2911BHHZ42-461-42329Upton, TX · COG Operating LLC | 1.02 | NeutronTIFF | 8,365 to 19,524 | Mar 6, 2026 |
| HASEL55 #142-461-35208Upton, TX · COG Operating LLC | 1.02 | RESISTIVITYTIFF | 4,000 to 10,247 | Dec 29, 2009run Dec 20, 2006 |
| Klondike B7 #2901BHHZ42-461-42330Upton, TX · COG Operating LLC | 1.03 | NeutronTIFF | 7,948 to 19,162 | Jan 29, 2026 |
| COWDEN15 #242-461-37188Upton, TX · COG Operating LLC | 1.05 | NEUTRON POROSITYTIFF | 4,000 to 10,956 | Apr 7, 2014run Apr 21, 2011 |
| LYNCH56 #242-461-36018Upton, TX · Diamondback E&P LLC | 1.08 | NEUTRON POROSITYTIFF | 4,000 to 10,070 | Aug 23, 2011run Sep 3, 2008 |
| COWDEN56 #142-461-35216Upton, TX · Diamondback E&P LLC | 1.10 | SURVEYS CASED HOLETIFF | 4,000 to 10,280 | Jan 26, 2010run Jan 9, 2007 |
| COWDEN15 #142-461-34997Upton, TX · COG Operating LLC | 1.11 | SURVEYS CASED HOLETIFF | 4,000 to 10,289 | Mar 30, 2009run Mar 20, 2006 |
| TDP 14 #142-461-38015Upton, TX · COG Operating LLC | 1.13 | RESISTIVITYTIFF | 4,000 to 9,347 | May 25, 2015run May 28, 2012 |
| LYNCH56 #142-461-35127Upton, TX · Diamondback E&P LLC | 1.14 | SURVEYS CASED HOLETIFF | 4,000 to 10,116 | Jan 26, 2010run Feb 12, 2007 |
| LYNCH29 #142-461-35125Upton, TX · COG Operating LLC | 1.15 | NEUTRON POROSITYTIFF | 4,000 to 10,230 | May 28, 2010run Feb 16, 2007 |
| MANN55 #242-461-36337Upton, TX · COG Operating LLC | 1.20 | NEUTRON POROSITYTIFF | 4,000 to 10,039 | Oct 22, 2012run Oct 22, 2009 |
| COWDEN56 #242-461-35640Upton, TX · Diamondback E&P LLC | 1.27 | NEUTRON POROSITYTIFF | 4,000 to 10,066 | Apr 5, 2011run Mar 24, 2008 |
| LYNCH15 #242-461-35921Upton, TX · COG Operating LLC | 1.27 | NEUTRON POROSITYTIFF | 4,000 to 10,259 | Jul 26, 2011run Aug 5, 2008 |
| COWDEN55 #142-461-37135Upton, TX · COG Operating LLC | 1.28 | NEUTRON POROSITYTIFF | 4,000 to 10,844 | Apr 21, 2014run Mar 1, 2011 |
| COWDEN55 #142-461-37135Upton, TX · COG Operating LLC | 1.28 | NEUTRON POROSITYTIFF | 4,000 to 10,844 | May 28, 2014run Mar 1, 2011 |
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.