About Us


Founded in 1971, MJ Systems (now MJ Logs) revolutionized the oil & gas industry with the introduction of oil and gas well logs on microfiche. As a pioneer in this field we’ve been gathering well logs from many sources and building our unrivaled raster and LAS well log library ever since.

In the 1990’s, MJ introduced Raster Image Well Logs to the industry and introduced digitized LAS curves in 2016, and has continued to deliver affordable, effective well log services to thousands of users – from individual geologists to some of North America’s top exploration companies.

Today, MJ Logs offers the most complete coverage with 3 million wells and 7 million Raster and LAS well logs in the US and Canada.

Finest original source raster well logs with the most accurate depth registrations

Custom LAS curve selection

Highest quality LAS well log digitization

Superb and experienced customer service

Flexible & affordable pricing

Licensing that allows you to keep raster log and LAS curve data forever

MJ Logs offers the best value for Raster and LAS Well Logs

Please don’t hesitate to Contact Us for more information. We look forward to assisting you with your Raster and LAS Well Log needs!