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Well Site Geology For The 21st Century

Who says you can't upgrade your services during a market downturn? We've revolutionized well site geology with a 24/7 real-time reporting system that our clients can access anywhere, anytime. No more waiting on samples or reports; no more wondering, "What's going on out there?" As long as you have access to your computer or smartphone you'll have the latest data at your fingertips.

:: Accessible

:: Innovative

:: Affordable

Streamlining The Well Site Geology Process

Imagine viewing your well data as a spreadsheet in a password protected webpage that allows you to access geologic and geosteering data as it becomes available. Our experienced team of on-site geologists are backed by off-site personnel who produce time-consuming reports and mudlogs. This streamlined approach allows our well site geologists to focus on the incoming data and provide accurate, timely interpretations; the result is a superior client experience.

:: Mud Logging

Tracking crucial information from cuttings and rig sensors

:: Geosteering

Accurate interpretations based on all of the available data

:: 24/7 Reporting

Real-time updates on your computer, tablet, or smartphone


"Earth Science Agency is bar none the best wellsite geology and geosteering service provider I have found. All wells 100% in zone. Absolutely the best!!."

Dan Berberick
VP Exploration - Cub Creek Energy

"Earth Science Agency's mudlogging services alone are far above par, but the online reporting system and on-site geosteering are the real game changers. The system ESA has built allows us to have constant up to date information at our fingertips. I appreciate all of the focus and dedication they have given to perfecting their system and look forward to continuing our relationship in the future."

Blaine Martin
Geologist - Bill Barrett Corporation

About Us

In 2003 on the shores of Lake Tahoe, Earth Science Agency began as a scientific and technical consulting company. For the past fourteen years we have served businesses, government agencies, and universities. Today, ESA is centrally located near Denver, Colorado to best serve our current client base.

ESA has a reputation for developing and utilizing breakthroughs in earth science and related technologies. Our mission is to help our clients streamline their operations and improve their bottom line.

Vandy Blue Spikes, PhD - President


Ross Apodaca, BS
Nathan Brown, MSc
Joe Coon, BS - Project Manager
Blake Eatherton, BS
Caleb Garbus, MSc - FAA Licensed sUAS Pilot
Levi Heintzelman, MSc
Dan Jacobs, BS
Tracy Lawson, BS
Kyle Newman, BS
Dominic Pitre, BS
Frank Sattler, MSc
Robert Semple, BS
Scott Snoy, BS
Kyle Welty, BS - Professional Geologist
Brian Whitfield, BS

Office Personnel

Lindsey Spikes - Business Manager
Tag Spikes - IT Manager

Current Openings

All applicants must have a reliable vehicle, live in Colorado, pass background and drug tests, and comply with all health and safety rules. Please send resumes to

Wellsite Geologist

We are seeking a full time well site geologist to work on a rig in Colorado. Applicants must have a degree in geology and experience with mud logging and geosteering. Experience in the DJ Basin and SES software is preferred. We are focused on hiring Colorado residents, but out of state applicants may be considered.


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