The Laramie Energy Research Center (LERC) of the U. S. Department of Energy has a major facility about one mile north of Laramie, Wyoming, for a batch retorting of oil shale. A 10-ton batch retort has been in operation since 1965, and at least 51 experiments have been performed. A 150-ton batch retort was constructed in 1969, which has accepted individual pieces of shale weighing as much as five tons. About 16 longer runs have been made on this equipment. Between them, the two retorts provide the best source of data available or on simulated in-situ retorting of oil shale. Both the past results and those from present and future tests provide uniquely-valuable guidance to those who are attempting to develop an economically-viable oil shale industry. Different shales can be studied, with different particle size distributions, under different process conditions to determine a variety of useful data, including process efficiency, material and energy balances, product mix, burn rate, temperatures and the behavior of individual large pieces of shale. Such data provide essential points of comparison for process models within DoE, industry and universities.They help to define the range of process variables within which successful in-situ retorting can be expected, as well as the complications to be expected in the underground situation in which particle size distribution is more difficult to control. Many of the results from both retorts have been reported in the literature. For example, a paper by Harak, Dockter and Carpenter (1971)(1) outlines results from two early runs on the 150-ton retort. A later paper by Harak, Dockter, Long and Sohns (1974)(2) presents the results of ten runs (including the earlier two) on the 150-ton retort, spanning the period March 23, 1970 through February 17, 1973. More recently, a report by Dockter and Harak (1976)(3) provides a comparison between six of these runs and six runs conducted under comparable test conditions on the 10-ton retort. Finally, a 1977 progress report by Martel and Harak(4) investigates retorting of low-grade Antim shale. A new computer program has been developed at JAYCOR under Department of Energy sponsorship. This program, SORDA, is designed to facilitate the validation and analysis of data from the 10-ton retort. It includes a complete set of diagnostic aids and tests for internal consistency of the input data. Inexpensive computer plots are available on microfiche, CALC01W plotter or the printer. Results are organized in a format suitable for publication by LERC personnel. Under contract EW-78-C-03-1782, a systematic series of 12 experiments has been analyzed using SORDA. Interrelations between these experiments will be developed during the final phase of this contract. Sample results are presented below.