TY - RPRT TI - Histograms showing variations in oil yield, water yield, and specific gravity of oil from Fischer assay analyses of oil-shale drill cores and cuttings from the Piceance Basin, northwestern Colorado AU - John D. Dietrich AU - Michael E. Brownfield AU - Ronald C. Johnson AU - Tracey J. Mercier PY - 2014 DO - 10.3133/ofr20141057 UR - https://pubs.usgs.gov/publication/ofr20141057 ID - ofr20141057 ER -