Dr. Robert (Bob) G. Loucks

Research Interests

Carbonate, sandstone, and mudstone sedimentology/stratigraphy

Reservoir characterization

Diagenesis and pore networks


A.A. Math and Science, Onondaga Community College, Syracuse, 1964

B.A. Geology, State University of New York at Binghamton, 1967

Ph.D. Geology, The University of Texas at Austin, 1976

Professional History

ARCO Research and Development, Plano, Texas, 1983–2000

Cities Service Research Lab, Tulsa, 1981–1983

Mobil Research Lab, Dallas, 1980–1981

Research Scientist, Bureau of Economic Geology, The University of Texas at Austin, 1975–1980

Texaco, Inc., Midland, Texas, 1968–1972

Selected Publications

Loucks, R. G., Kerans, Charles, Zeng, Hongliu, and Sullivan, P. A., 2017 (in press), Documentation and characterization of the Lower Cretaceous (Valanginian) Calvin and Winn carbonate shelves and shelf margins, onshore northcentral Gulf of Mexico: AAPG Bulletin, (January or Feburary 2017, 24 p.)

Loucks, R. G., and Fu, Qilong, 2016, Origin and characterization of the lithofacies and Dual micropore/macropore network in Pennsylvanian (Early Desmoinesian) Caddo shelf-buildup complexes, Stephens County, North Central Texas: GCAGS Journal, v. 5, p. 1-24.

R. G. Loucks, and Reed, R. M., 2016, Natural microfractures in unconventional shale-oil and shale-gas systems: Real, hypothetical, or wrongly defined?, GCAGS Journal, v. 5, p. 64-72.

Loucks, R. G., Lucia, F. J., and Waite, L., 2013, Origin and description of the micropore network within the Lower Cretaceous Stuart City Trend tight-gas limestone reservoir in Pawnee Field in South Texas, GCAGS Journal, v. 2, p. 29-41.

Lucia, F. J., and Loucks, R. G., 2013, Micropores in carbonate mud: Early development and petrophysics: GCAGS Journal, v. 2, p. 1-10.

Loucks, R. G., Reed, R. M., Ruppel, S. C., and Hammes, Ursula, 2012, Spectrum of pore types and networks in mudrocks and a descriptive classification for matrix-related mudrock pores: AAPG Bulletin, v. 96, no. 6, p. 1071–1098.

Loucks, R. G., Moore, B. T., and Zeng, H., 2011, On-shelf lower Miocene Oakville sediment-dispersal patterns within a three-dimensional sequence-stratigraphic architectural framework and implications for deep-water reservoirs in the central coastal area of Texas: AAPG Bulletin, v. 95, no. 10, p. 1795‒1817.

Loucks, R. G., Kerans, C., Janson, X., and Marhx Romano, M. A., 2011, Lithofacies analysis and stratigraphic architecture of a deep-water carbonate debris apron: Lower Cretaceous (latest Aptian to latest Albian) Tamabra Formation, Poza Rica field area, Mexico: SEPM (Society for Sedimentary Geology), Special Publication No. 96, p. 367–389.

Zeng, H., Loucks, R. G., Janson, X., Wang, G., Xia, Y., Yuan, B., and Xu, L., 2011, Three-dimensional seismic geomorphology and analysis of the Ordovician paleokarst drainage system in the central Tabei Uplift, northern Tarim Basin, western China: AAPG Bulletin, v. 95, no. 12, p. 2061‒2083.

Loucks, R. G., Reed, R. M., Ruppel, S. C., and Jarvie, D. M., 2009, Morphology, genesis, and distribution of nanometer-scale pores in siliceous mudstones of the Mississippian Barnett Shale: Journal of Sedimentary Research, v. 79, p. 848–861.

Loucks, R. G., and Ruppel, S. C., 2007, Mississippian Barnett Shale: lithofacies and depositional setting of a deep-water shale-gas succession in the Fort Worth Basin, Texas: AAPG Bulletin, v. 91, no. 4, p. 579–6 

McDonnell, Angela, Loucks, R. G., and Dooley, Tim, 2007, Quantifying the origin and geometry of circular sag structures in northern Fort Worth Basin, Texas: paleocave collapse, pull-apart fault systems, or hydrothermal alteration? AAPG Bulletin, v. 91, no. 9, p. 1295–1318.

Loucks, R. G., Mescher, P. K., and McMechan, G. A., 2004, Three-dimensional architecture of a coalesced, collapsed-paleocave system in the Lower Ordovician Ellenburger Group, central Texas: AAPG Bulletin, v. 88, no. 5, p. 545–564.

Loucks, R. G., 1999, Paleocave carbonate reservoirs: origins, burial-depth modifications, spatial complexity, and reservoir implications: AAPG Bulletin, v. 83, p. 1795–1834.


President's Award for Outstanding Paper in the GCAGS Journal: "Factors controlling permeability variation in onshore, deep Paleogene Wilcox sandstones in the northern Gulf of Mexico basin: targeting high-quality reservoirs" (co-authors Shirley Dutton and Bill Ambrose), 2015

President's Award for Outstanding Paper in the GCAGS Journal: "Scanning-electron-microscope petrographic evidence for distinguishing organic-matter pores associated with depositional organic matter versus migrated organic matter in mudrock" (co-author Robert Reed), 2014

AAPG 2014 Robert R. Berg Outstanding Research Award

Karst Water Institute 2014 Karst Research Award 

President's Award for Outstanding Paper in the GCAGS Journal: " Micropores in carbonate mud: Early development and petrophysics:" (co-author Jerry Lucia), 2013

Award of Excellence “Top 10” Oral Presentation for presentation of “Spectrum of Pore Types in Siliceous Mudstones in Shale-Gas Systems,” AAPG Annual Convention, Houston, April, 2011

Wallace E. Pratt Award for best AAPG Bulletin article published in calendar year 2009, 2010

A.I. Levorsen Award for Best Paper presented at Gulf Coast Section, GCSSEPM/GCAGS Annual Meeting, “Preliminary Classification of Matrix Pores in Mudrocks,” 2010

First Place, Thomas A. Philpott Excellence of Presentation Award, Gulf Coast Association of Geological Societies (GCAGS), 59th Annual Convention, Shreveport, Louisiana, 2009

Jackson School of Geosciences 2008 Outstanding Research Award

Wallace E. Pratt Memorial Award for Best Paper in the 1999 AAPG Bulletin at the 2001 Annual AAPG Convention

A. I. Levorsen Memorial Award, Southwest Section, American Association of Petroleum Geologists, 2006

Mideast AAPG Dean A. McGee International Distinguished Lecturer (for Fall 1999)

SEPM Excellence of Poster Presentation Award, AAPG/SEPM Annual Meeting, Dallas, 1991

SEPM Excellence of Presentation Award, AAPG/SEPM Annual Meeting, Calgary, 1982

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