A major series of aboveground oil shale retorting experiments was conducted by Paraho Development, Inc., in its Semiworks and Pilot Plant retorts at Anvil Points, Colorado. The retorts contain a packed bed of 0.1- to 2.0 ( up to 3. 0?) inch shale particles which slowly descends, driven by gravity and controlled by a moving retarder grate at the bottom. The bed is usually heated in direct mode by combustion of upward-flowing recycle gas and air; however, indirect mode heating by preheated recycle gas is possible. During operations from 1974 through April 1976, Paraho conducted a privately funded experimental program to test the process. Operations during 1977 and 1978, under contract with the Office of Naval Research and the Department of Energy, produced additional research data as well as about 75,000 barrels of shale oil. JAYCOR has been funded by the Department of Energy to analyze this important body of data and to extract from it the maximum of useful information. One hundred seventy-six periods of steady-state operation (runs) were selected for study and subjected to automated analysis for internal and external consistency. A variety of techniques was developed to detect and correct data flaws. Each run was subjected to a set of quality criteria intended to maximize confidence in the subsequent correlations. One hundred thirty-six runs ultimately met these criteria, the remainder containing intractable multiple errors. This volume of our final report describes the results of data analysis and validation. Volume 2 discusses the development of a stoichiometric model of Paraho process chemistry and the control-oriented correlations based on that model.