BOAST is a three-dimensional, three-phase black oil simulator. A detailed technical description of BOAST is contained in Volume I. The present volume is intended to function as an easy-to-use program user's manual. The BOAST program simulates isothermal, darcy flow in three dimensions. It assumes reservoir fluids can be described by three fluid phases (oil, gas, and water) of constant composition with physical properties that depend on pressure only. BOAST can simulate oil and/or gas recovery by fluid expansion, displacement, gravity draingage, and capillary imbibition mechanisms. Some of the typical field production problems which can be handled by BOAST include: primary depletion studies, pressure maintenance by water and/or gas injection, and evaluation of secondary recovery waterflooding and displacement operations. Technically, BOAST is a finite-difference, implicit pressure-explicit saturation (IMPES) numerical simulator. It contains both direct (BAND, D4) and iterative (LSOR) solution techniques for solving systems of algebraic equations. The well model in BOAST allows specification of rate or pressure constraints on well performance, and the user is free to add or recomplete wells during the simulation. Included in BOAST is a pressure initialization algorithm, a bubble point tracking scheme, an automatic time step control method, and a material balance check on solution stability. Many user-controlled output options are also available. Discussion of the above topics, as well as comments on conducting a simulation model study and a discussion of multidimensional numerical dispersion is presented in Volume I. Volume II contains an explanation of the input data, a discussion of the output data, and example problems.