The Williston Basin has long been a focal point for North American energy development, and Field Geo Services (FGS) has proudly played a key role in its geological story. With decades of combined experience, FGS has become a trusted partner for operators throughout the Bakken and Three Forks formations, delivering high-quality wellsite geology services tailored to the region’s complex needs.

From the outset, FGS recognized the Williston Basin’s unique geological profile—a region defined by variable lithology, rapid lateral changes, and high-pressure zones. Our team of expert geologists and mudloggers has worked extensively across North Dakota and Montana, bringing a deep understanding of local stratigraphy and structure to every well we service.
Proven Expertise Across Services
FGS offers a full suite of wellsite geology services in the Williston, including:
- Mudlogging: Our comprehensive mudlogging packages provide real-time formation evaluation, accurate lithology descriptions, and safety monitoring, all handled by experienced professionals.
- Geochemistry & Mass Spectrometry: We utilize advanced gas analysis tools to deliver precise hydrocarbon fingerprinting, enabling smarter geosteering and reservoir characterization.
- X-Ray Fluorescence (XRF): Our field-deployable XRF services offer rapid elemental analysis, supporting both operational decisions and long-term reservoir understanding.
- Geosteering: FGS brings extensive geosteering experience in the Williston Basin, leveraging advanced gas geochemistry, real-time data integration, and deep regional knowledge to help operators precisely land and navigate laterals within the Bakken and Three Forks formations.
Extensive Geosteering Experience
FGS brings extensive geosteering expertise to the Williston Basin, combining real-time data analysis, advanced gas geochemistry, and detailed regional models to help clients land and navigate laterals with pinpoint precision. Our geosteering teams are highly trained in the complexities of Bakken and Three Forks formations and work closely with drilling engineers and geologists to maximize reservoir contact and minimize drilling risk. Whether in tight windows or structurally complex zones, FGS ensures operators maintain trajectory and optimize production potential.

Tailored Solutions, Trusted Results
Every well drilled in the Williston Basin comes with its own challenges, and FGS responds with flexible, client-focused solutions. Our crews are not only trained in cutting-edge technologies but also seasoned in the unique operational demands of Bakken and Three Forks development. From high-volume pads to exploratory wells, we deliver data you can trust and insights that move your project forward.
Partnership Built on Performance
We pride ourselves on forming long-term partnerships with our clients. Our reputation in the Williston Basin is built on consistent performance, technical excellence, and a commitment to safety. Whether supporting a major operator or a new entrant to the basin, FGS stands ready to contribute unmatched value to your drilling program.
If you’re looking for a proven partner in the Williston Basin, Field Geo Services is ready to deliver. Would you like to request a bid or schedule a consultation? Reach out to us today at sales@fieldgeoservices.com.