![Dr. Toti Larson](/files/content/beg/people/toti-larson.jpg)
PI, Research Associate, Geology and data analytics
Email: toti.larson@beg.utexas.edu
Telephone: 512-471-1856
![Dr. Tongwei Zhang](/files/content/beg/people/tongwei-zhang.jpg)
Research Scientist, Organic Geochemist / Geologist
Email: tongwei.zhang@beg.utexas.edu
Telephone: 512-232-1496
![Dr. Robert M. Reed](/sites/default/files/media/0000/1192/Robert%20Reed.jpg)
Research Scientist Associate V, Sedimentary petrology and microfabric analysis
Email: rob.reed@beg.utexas.edu
Telephone: 512-471-0356
![Dr. Xun Sun](/files/content/beg/people/xun-sun.jpg)
Research Scientist Associate III, Organic Geochemistry
Email: xun.sun@beg.utexas.edu
Telephone: 512-471-4331
![James Evan Sivil](/files/content/beg/people/james-sivil.jpg)
Research Scientist Associate II, Geochemistry Laboratory Manager
Email: evan.sivil@beg.utexas.edu
Telephone: 512-471-3623
![Dr. Priyanka Periwal](/files/content/beg/people/priyanka-periwal.jpg)
Research Scientist Associate III, Scanning electron Microscopy
Email: priyanka.periwal@beg.utexas.edu
Telephone: 512-475-8786
Collaborators and previous MSRL researchers
![Dr. Steve Rupple](https://www.beg.utexas.edu/files/content/beg/people/stephen-ruppel.jpg)
Dr. Steve Ruppel
Founder of the Mudrock Systems Research Laboratory Consortia
![Dr. Farzam Javadpour](/files/content/beg/people/farzam-javadpour.jpg)
Dr. Farzam Javadpour
Research Scientist, Transport in porous media
![Harry Rowe](https://www.beg.utexas.edu/files/content/beg/people/harry-rowe.jpg)
Harry Rowe
![Gregory Frebourg](https://www.beg.utexas.edu/files/content/beg/people/gregory-frebourg.jpg)
Gregory Frebourg
![Scott Hamlin](https://www.beg.utexas.edu/files/content/beg/people/scott-hamlin.jpg)
Scott Hamlin
- Robert Baumgardner
- Nick Hayman
- Julia Gale
- Chris Ogiesoba