WELL LOGS · UNITED STATES · ONE ROW PER LOG

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.

257,328 LOG FILES ON 187,907 WELLS · A LOG'S LAS AND IMAGE IN ONE ROW · PAGE 100 OF 5,147

Well Logas describedIntervalft, as filedDatereceived
Rock Hollow #1641UBHZ42-235-36029Irion, TX · Discovery Natural Resources LLCGamma RayLAS + TIFF1,001 to 10,426Nov 24, 2025
Nance #3HHZ42-255-37568Karnes, TX · Repsol Oil & Gas USA LLCGamma RayLAS + TIFF150 to 9,300Nov 24, 2025
Nance #4HHZ42-255-37569Karnes, TX · Repsol Oil & Gas USA LLCGamma RayLAS + TIFF3,800 to 12,696Nov 24, 2025
Electric Mayhem #1HHZ42-287-32768Lee, TX · Paleo Oil Company LLCMeasure While Drilling (MWD)LAS + TIFF4,160 to 8,550Nov 24, 2025
JW (SA) C #771WBHZ42-329-45951Midland, TX · Discovery Operating Inc.Measure While Drilling (MWD)LAS + TIFF70 to 19,848Nov 24, 2025
TXL 27 Unit 3 #2774JHHZ42-329-46999Midland, TX · XTO Energy Inc.Measure While Drilling (MWD)TIFF1,277 to 19,495Nov 24, 2025
TXL 27 Unit 3 #2773JHHZ42-329-47001Midland, TX · XTO Energy Inc.Measure While Drilling (MWD)TIFF1,288 to 19,827Nov 24, 2025
TXL 27 Unit 3 #2771JHHZ42-329-47004Midland, TX · XTO Energy Inc.Measure While Drilling (MWD)TIFF1,246 to 19,982Nov 24, 2025
Hrncir et al Unit #142-355-34210Nueces, TX · Suemaur Operating LLCGamma Ray2 TIFF2,014 to 10,298Nov 24, 2025
Blackstone 22 #3HHZ42-357-33746Ochiltree, TX · Courson Oil & Gas Inc.Gamma RayTIFF6,210 to 9,698Nov 24, 2025
Dswest a #1752LAHZ42-383-41208Reagan, TX · Discovery Natural Resources LLCGamma RayLAS + TIFF780 to 18,377Nov 24, 2025
Hardcastle State 27-34-39 C #3HHZ42-389-40166Reeves, TX · Coterra Energy Operating Co.Measure While Drilling (MWD)TIFF9,775 to 25,777Nov 24, 2025
Jaxon WA #2HHZ42-415-35680Scurry, TX · Walsh & Watts Inc.Gamma RayLAS + TIFF488 to 18,177Nov 24, 2025
Smith Lee Etal #9442-433-34238Stonewall, TX · Tacor Resources IncNeutronLAS + TIFF4,000 to 4,762Nov 24, 2025
Smith Lee Etal #9442-433-34238Stonewall, TX · Tacor Resources IncNeutronLAS + TIFF4,000 to 4,974Nov 24, 2025
University Sprinter 22112 40-31 #1HHZ42-475-38386Ward, TX · BTA Oil Producers LLCMeasure While Drilling (MWD)TIFF5,200 to 18,778Nov 24, 2025
University Sprinter 22112 40-31 #2HHZ42-475-38387Ward, TX · BTA Oil Producers LLCMeasure While Drilling (MWD)TIFF5,521 to 18,746Nov 24, 2025
Bfmt West #513HHZ42-479-44792Webb, TX · EOG Resources Inc.Gamma RayTIFF67 to 19,910Nov 24, 2025
G-B Minerals #21HHZ42-479-44828Webb, TX · EOG Resources Inc.Gamma RayTIFF110 to 23,650Nov 24, 2025
Metallica 44H #44HHZ42-493-32952Wilson, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)LAS + TIFF0 to 19,560Nov 22, 2025
Metallica 45H #45HHZ42-493-32953Wilson, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)LAS + TIFF0 to 19,397Nov 22, 2025
Van Halen 68H #68HHZ42-493-32956Wilson, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)LAS + TIFF0 to 18,001Nov 22, 2025
Van Halen 69H #69HHZ42-493-32957Wilson, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)LAS + TIFF0 to 18,060Nov 22, 2025
Van Halen 70H #70HHZ42-493-32958Wilson, TX · Trinity Operating (Usg) LLCMeasure While Drilling (MWD)LAS + TIFF0 to 17,870Nov 22, 2025
Oyster Bayou Field Unit #109342-071-32659Chambers, TX · Denbury Onshore LLCGamma RayTIFF6,700 to 8,715Nov 21, 2025
Sojo-Touchstone #942-151-33282Fisher, TX · L.C.S. Production CompanySpontaneous Potential (SP)TIFF141 to 4,480Nov 21, 2025
Schorp-White Ranch Ltd. #A303HZ42-163-34318Frio, TX · Javelin Energy Partners Mgmt LLCGamma RayTIFF4,990 to 16,160Nov 21, 2025
Schorp-White Ranch Ltd. #A304HZ42-163-34319Frio, TX · Javelin Energy Partners Mgmt LLCGamma RayTIFF4,990 to 16,725Nov 21, 2025
Schorp-White Ranch Ltd. #A305HZ42-163-34320Frio, TX · Javelin Energy Partners Mgmt LLCGamma RayTIFF4,990 to 17,420Nov 21, 2025
Zrzavy Unit #A302HZ42-163-34322Frio, TX · Javelin Energy Partners Mgmt LLCGamma RayTIFF4,990 to 17,206Nov 21, 2025
Arches H #8HHZ42-177-34526Gonzales, TX · EOG Resources Inc.Gamma RayLAS + TIFF10,565 to 20,577Nov 21, 2025
University 43 #R903WCHZ42-235-36563Irion, TX · Sem Operating Company LLCMeasure While Drilling (MWD)TIFF0 to 15,490Nov 21, 2025
Blackwell-E-R-E (SA) F5 #f 5HHZ42-255-37506Karnes, TX · Repsol Oil & Gas USA LLCGamma RayLAS + TIFF110 to 22,236Nov 21, 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.