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NEW FOR 2018!    RMS-SEPM Brown Bag Luncheon Series

Our Next Luncheon Talk

(11:30 Reception; 11:45 Lunch; 12:15 Talk)


The next talk of the 2018 RMS-SEPM Luncheon Lecture Series will be held on Tuesday, April 24, 2018.

A tale of three oil families: An appreciation of carbonate-rich, Mississippian source rocks in the Williston Basin of North America

John E. Zumberge, John B. Curtis*, Don Rocher

GeoMark Research, Ltd.


11:30 Reception, 11:45 Lunch, 12:15 Talk
at the
Wynkoop Brewing Company
1634 18th St., Denver, CO

The cost is $25.00 for current members and $35.00 for non-members ($10 of which pays for an annual RMS-SEPM membership). Unemployed individuals may sign up for lunch for just $10.00. Persons who do not wish to have lunch are welcome for a $10.00 fee. Walk-ins may purchase a lunch for the standard fees ($25.00 or $35.00) although quantities are limited. Walk-ins without a lunch are charged a $10.00 fee.

Please submit reservations by 10:00 a.m., the Friday before the talk.

After the reservation deadline, you may attend the talk for a $10.00 "walk-in" fee. Reservations may be secured online, by e-mail at
or by calling Robin Swank at 720-272-6697


Over 350 Williston Basin oils were grouped into families, using multivariate statistics, which share common sources based on genetic-specific biomarkers and stable carbon isotope compositions. Three Oil Families were identified, produced from Madison carbonates, that were also generated from carbonate source rocks. One of the three carbonate families (Family 1) appears to have been the result of mixing of the other two families and oil from Bakken black-shale source rocks.

A number of maturity-sensitive biomarker ratios, not utilized in the genetic classification, were used to calculate vitrinite reflectance equivalent (VRE) values for each oil. This provides insight into the stratigraphic and geographic distribution of source facies and fluid movement, i.e., Migration Happens! The lowest maturity Family 3 oils are the most sulfur-rich and occur in Saskatchewan and northwestern North Dakota. The more mature Family 2 oils, which comprise the most members, commonly occur along the north-south border of Montana and North Dakota. Family 2 oils spatially correlate very well with basal Mission Canyon Lodgepole Formation source-rock richness and maturity maps.


Speaker Biography:



Speaker List

Click on the talk title for a PDF version of the abstract.


Jan 30

Donna Anderson

Subcrop reinterpretation of the Ordovician Bighorn Dolomite and Devonian Darby Formation, Southwest Wyoming

Feb 27

Larry Rasmussen

Early Triassic Moenkopi Petroleum System of Central Utah

Mar 27

Michael Gardner

Tectonics and Sedimentation of Permian Delaware Basin Deepwater Systems

Apr 24

John Curtis

Time-Lapse Geochemistry of Source-Rock Reservoirs: One Approach & Initial Observations

Jun 5

Charlie Harman

Quantified Facies Architecture and Sequence Geometry of the Yates Formation, Slaughter Canyon, New Mexico

Aug 28

Justin Birdwell & Ron Johnson

Distribution of mineral phases in the Green River Formation, Piceance Basin, Colorado – Implications for the evolution of Eocene Lake Uinta

Sep 25

Zane Jobe


Oct 30

Jeff May

The Sedimentology of Mudrocks: Organisms, Organics & Occasional Occurrences


In order to keep our Luncheon Program solvent and operating on schedule,
the RMS-SEPM Board has adopted the following guidelines for reservations and seating at the Wynkoop:

  • Reservations for this Luncheon Talk will be closed at 10:00am on Friday, before the talk. (No reservations are needed for walk-ins.)