- Balch, Alfred H.; Miller, J. J.; Lee, M. W.; Ryder, R. T., 1981, Processed and interpreted U.S. Geological Survey seismic reflection profile and vertical seismic profile, Powder River and Custer Counties, Montana: Oil and Gas Investigation Chart 108, 1 profile ;on sheet 73 x 131 cm.,
- Fouch, T. D., 1981, Distribution of rock types, lithologic groups, and interpreted depositional environments for some lower Tertiary and upper Cretaceous rocks from outcrops at Willow Creek-Indian Canyon through the subsurface of Duchesne and Altamont oil fields, southwest to north-central parts of the Uinta Basin, Utah: Oil and Gas Investigation Chart 81, 2 cross sections :col. ;74 x 103 cm. and 73 x 97 cm.,
- Lee, Myung W.; Miller, J. J.; Ryder, R. T.; Balch, A. H., 1981, Processed and interpreted U.S. Geological Survey seismic reflection profile and vertical seismic profiles, Niobrara County, Wyoming: Oil and Gas Investigation Chart 114, 6 profiles on 1 sheet ;sheet 93 x 117 cm. folded in envelope 30 x 24 cm.,
- Miller, John J.; Ryder, R. T.; Balch, A. H.; Lee, M. W., 1981, Processed and interpreted U.S. Geological Survey seismic reflection profile and vertical seismic profile, Powder River and Carter Counties, Montana: Oil and Gas Investigation Chart 110, 1 profile ;on sheet 75 x 137 cm.,
- O'Sullivan, Robert Brett, 1981, Stratigraphic sections of some Jurassic rocks from near Moab, Utah, to Slick Rock, Colorado: Oil and Gas Investigation Chart 107, 35 stratigraphic sections ;on sheet 78 x 117 cm.,
- O'Sullivan, Robert Brett, 1981, Stratigraphic sections of Middle Jurassic Entrada Sandstone and related rocks from Salt Valley to Dewey Bridge in east-central Utah: Oil and Gas Investigation Chart 113, 14 sections ;on sheet 76 x 94 cm.,
- Rice, Dudley D., 1981, Subsurface cross section from southeastern Alberta, Canada, to Bowdoin Dome area, northcentral Montana, showing correlation of Cretaceous rocks and shallow, gas-productive zones in low-permeability reservoirs: Oil and Gas Investigation Chart 112, 1 chart ;79 x 133 cm. folded in envelope 30 x 24 cm.,
- Roehler, Henry W., 1981, Correlation of Eocene rocks in measured sections in the southeast and west parts of the Rock Springs coal field, Wyoming: Oil and Gas Investigation Chart 111, 59 stratigrahic sections ;on 2 sheets 78 x 85 cm. and 78 x 94 cm.,
- Roehler, Henry W., 1981, Description of Eocene rocks in White Mountain at Rock Springs, Wyoming: Oil and Gas Investigation Chart 117, 1 stratigraphic section ;on sheet 61 x 78 cm., folded in envelope 30 x 24 cm.,
- Ryder, Robert T.; Balch, A. H.; Lee, M. W.; Miller, J. J., 1981, Processed and interpreted U.S. Geological Survey seismic reflection profile and vertical seismic profile, Carter County, Montana and Crook County, Wyoming: Oil and Gas Investigation Chart 115, 3 profiles on 1 sheet ;72 x 135 cm. folded in envelope 30 x 24 cm.,
- Scholle, Peter A.; Schwab, Kim A.; Krivoy, Harold Lloyd, 1981, Summary chart of geological data from the COST no. B-3 well, U.S. Mid-Atlantic continental slope: Oil and Gas Investigation Chart 106, 31 well logs on 1 sheet ;sheet 73 x 128 cm.,
