WELL LOGS · UNITED STATES · ONE ROW PER LOG

Jefferson County well logs

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.

740 LOG FILES ON 438 WELLS · A LOG'S LAS AND IMAGE IN ONE ROW · PAGE 1 OF 15

Well Logas describedIntervalft, as filedDatereceived
J.E. Broussard Heirs #142-245-32905Jefferson, TX · Ballard Exploration Company Inc.Gamma RayTIFF8,159 to 9,407Oct 3, 2025
Golden Triangle Storage #342-245-32916Jefferson, TX · Golden Triangle Storage LLCAcoustic/Sonic2 TIFF315 to 5,975Apr 23, 2025
Golden Triangle Storage #342-245-32916Jefferson, TX · Golden Triangle Storage LLCCement BondTIFF315 to 5,975Apr 23, 2025
Golden Triangle Storage #342-245-32916Jefferson, TX · Golden Triangle Storage LLCGamma RayTIFF315 to 5,975Apr 23, 2025
Golden Triangle Storage #342-245-32916Jefferson, TX · Golden Triangle Storage LLCNeutronTIFF315 to 5,975Apr 23, 2025
Golden Triangle Storage #342-245-32916Jefferson, TX · Golden Triangle Storage LLCOther2 TIFF315 to 5,975Apr 23, 2025
Golden Triangle Storage #342-245-32916Jefferson, TX · Golden Triangle Storage LLCResistivityTIFF315 to 5,975Apr 23, 2025
Pine Island #142-245-32875Jefferson, TX · Ballard Exploration Company Inc.Gamma RayTIFF9,784 to 13,318Oct 29, 2024
Broussard-Hebert E #142-245-32540Jefferson, TX · Ballard Exploration Company Inc.DensityTIFF9,025 to 10,936Oct 14, 2024
Gladys City a #20042-245-32892Jefferson, TX · Kingwood Exploration LLCNEUTRON/DENSITY POROSITYTIFF564 to 4,020Oct 7, 2022run Jun 14, 2019
Glady S City Oil Og&m Co #19942-245-32881Jefferson, TX · Kingwood Exploration LLCNEUTRON/DENSITY POROSITYTIFF563 to 4,098Oct 7, 2022run Jun 3, 2019
S. Sour Lake #142-245-32878Jefferson, TX · Ballard Exploration Company Inc.RESISTIVITYTIFF8,000 to 10,590Oct 4, 2022run Sep 11, 2019
Gladys City #19842-245-32896Jefferson, TX · Rheaco Oil Company Ltd.InductionTIFF0 to 1,010Jul 28, 2022
Gladys City #19642-245-32894Jefferson, TX · Rheaco Oil Company Ltd.InductionTIFF50 to 1,223Jul 27, 2022
Gladys City #19742-245-32895Jefferson, TX · Rheaco Oil Company Ltd.OtherTIFF50 to 1,226Jul 27, 2022
Gladys City #20042-245-32902Jefferson, TX · Rheaco Oil Company Ltd.InductionTIFF0 to 982Jul 27, 2022
Gladys City #19942-245-32903Jefferson, TX · Rheaco Oil Company Ltd.InductionTIFF0 to 971Jul 27, 2022
McFaddin et al #27742-245-32880Jefferson, TX · Kingwood Exploration LLCNEUTRON/DENSITY POROSITYTIFF318 to 2,794Jul 8, 2022run May 23, 2019
McFaddin Ranch #1642-245-32876Jefferson, TX · Kingwood Exploration LLCNEUTRON/DENSITY POROSITYTIFF1,020 to 8,094Jul 8, 2022run Mar 24, 2019
McFaddin Ranch #0014ST42-245-32095Jefferson, TX · Kingwood Exploration LLCNEUTRON/DENSITY POROSITYTIFF1,500 to 8,851Jul 7, 2022run Apr 25, 2019
Big Prairie #142-245-32877Jefferson, TX · Ballard Exploration Company Inc.RESISTIVITYTIFF5,000 to 9,600Jul 7, 2022run Apr 23, 2019
McLean Unit 3 #342-245-32858Jefferson, TX · Magnum Producing LPGamma RayTIFF1,290 to 6,818Oct 6, 2021
Air Liquide #142-245-32580Jefferson, TX · Air Liquide Large Indust U.S. LPCOMBINATION: RESISTIVITY/NEUTRON/DENSITY POROSITYTIFF0 to 4,862Aug 31, 2021run Nov 9, 2020
Clark #60A42-245-32873Jefferson, TX · Rheaco Oil Company Ltd.NEUTRON/DENSITY POROSITYTIFF0 to 891Aug 18, 2021run Jun 18, 2019
Sunset Unit B #142-245-32866Jefferson, TX · Hilcorp Energy CompanyCOMBINATION: RESISTIVITY/NEUTRON/DENSITY POROSITYTIFF2,145 to 8,462May 11, 2021run Apr 13, 2018
Thomas E. Etal #5A42-245-31984Jefferson, TX · Valero Terminaling & Distrib. CoMulti-finger CaliperTIFF0 to 2,856Oct 19, 2020
Thomas E. Etal #5A42-245-31984Jefferson, TX · Valero Terminaling & Distrib. CoOtherTIFF0 to 2,856Oct 19, 2020
Gladys City #19742-245-32895Jefferson, TX · Rheaco Oil Company Ltd.InductionTIFF50 to 1,226Oct 19, 2020
Taylor Unit #00142-245-32855Jefferson, TX · Gaither Petroleum CorporationInductionTIFF2,918 to 12,014Sep 9, 2020
McFaddin Ranch #13ST42-245-32060Jefferson, TX · Kingwood Exploration LLCNEUTRON/DENSITY POROSITYTIFF5,041 to 8,059Jul 20, 2020run Jun 8, 2017
McFaddin Ranch #11ST42-245-30213Jefferson, TX · Kingwood Exploration LLCNEUTRON/DENSITY POROSITYTIFF2,020 to 8,477Jul 20, 2020run May 24, 2017
Wingate Unit #142-245-32851Jefferson, TX · Travis Operating LLCCOMBINATION: RESISTIVITY/NEUTRON/DENSITY POROSITYTIFF2,525 to 9,682Mar 16, 2020run Mar 11, 2017
Doornbos #142-245-32893Jefferson, TX · Houston Energy Operating L.P.RESISTIVITYTIFF3,450 to 15,767Mar 4, 2020run Oct 2, 2019
Langham Unit #242-245-32847Jefferson, TX · Cooper Operating LLCCOMBINATION: RESISTIVITY/NEUTRON/DENSITY POROSITYTIFF10,038 to 11,045Mar 4, 2020run Jan 11, 2017
Morrell Gas Unit #142-245-32661Jefferson, TX · Petrodome Operating, LLCCOMBINATION: RESISTIVITY/NEUTRON/DENSITY POROSITYTIFF3,490 to 17,484Dec 2, 2019run Oct 20, 2010
Clark #6142-245-32870Jefferson, TX · Rheaco Oil Company Ltd.NEUTRON/DENSITY POROSITYTIFF0 to 1,035Oct 4, 2019run Jan 16, 2019
Gladys City #19442-245-32883Jefferson, TX · Rheaco Oil Company Ltd.NEUTRON/DENSITY POROSITYTIFF50 to 1,252Sep 27, 2019run Jul 31, 2019
Langham Unit #342-245-32843Jefferson, TX · Cooper Operating LLCNEUTRON POROSITYTIFF10210 to 1965 as filedSep 25, 2019run May 6, 2016
Junker Spencer #7042-245-32845Jefferson, TX · Hilcorp Energy CompanyCOMBINATION: RESISTIVITY/NEUTRON/DENSITY POROSITYTIFF1,829 to 8,593Sep 25, 2019run Apr 15, 2016
Gladys City #19542-245-32884Jefferson, TX · Rheaco Oil Company Ltd.InductionTIFF0 to 1,264Sep 19, 2019
Gladys City #19342-245-32882Jefferson, TX · Rheaco Oil Company Ltd.InductionTIFF50 to 757Sep 13, 2019
McFaddin State #3942-245-32856Jefferson, TX · Gepard Energy IncCOMBINATION: RESISTIVITY/NEUTRON/DENSITY POROSITYTIFF7,539 to 11,180May 17, 2019run Jun 26, 2018
McFaddin State #3942-245-32856Jefferson, TX · Gepard Energy IncCOMBINATION: RESISTIVITY/NEUTRON/DENSITY POROSITYTIFF2,381 to 6,800May 17, 2019run May 5, 2018
Gladys City #18742-245-32869Jefferson, TX · Rheaco Oil Company Ltd.COMBINATION: RESISTIVITY/NEUTRON/DENSITY POROSITYTIFF0 to 1,046Mar 14, 2019run Aug 28, 2018
U.S. Department of Energy #109B42-245-31675Jefferson, TX · U.S. Department of EnergyRESISTIVITYTIFF0 to 2,075Nov 9, 2018run Apr 15, 2011
U.S. Department of Energy #109B42-245-31675Jefferson, TX · U.S. Department of EnergyRESISTIVITYTIFF0 to 2,140Nov 9, 2018run Jan 31, 2011
U.S. Department of Energy #111B42-245-31679Jefferson, TX · U.S. Department of EnergyRESISTIVITYTIFF0 to 2,114Oct 29, 2018run Feb 22, 2017
U.S. Department of Energy #113A42-245-31682Jefferson, TX · U.S. Department of EnergyRESISTIVITYTIFF0 to 2,131Oct 29, 2018run Feb 21, 2017

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.