Fracturing work conducted on the 2006 Tip Top/Hogsback (TTHB) field horizontal well program proved that sand plug isolation will work in horizontal wells, even when the stimulation treatment calls for fracturing with a high energy fluid. The TTHB field is a tight gas field in southwestern Wyoming, and the wells will not produce without a fracture stimulation treatment. This paper will describe the evaluation process of various fracturing technologies considered for the program, and how learnings from a 1995 horizontal program were used to build the final pinpoint stimulation design. In addition, this paper will discuss the stimulation execution and the learnings generated from the program. The fractured horizontal wells were drilled to 11,000 ft measured depth (MD), 7,200 ft true vertical depth (TVD), with the laterals being approximately 3,800 ft of the total measured depth. Eight fracture treatments were planned for each horizontal. The foam stimulation treatments contained 60-quality CO2 and averaged 235,000 lbm total proppant per zone. The basic stimulation procedure consisted of cutting perforation holes by use of a hydrajet tool on the end of coiled tubing (CT), pumping a fracture treatment down the production casing, and setting a sand plug with CT in the lateral to provide zonal isolation. This process allowed continuous treatment of successive intervals without shutting down to set a mechanical plug or perforate the next interval. Although several challenges were encountered during the execution of the stimulation treatment, the stimulation design did prove to be a more time efficient and cost effective option than conventional horizontal well fracturing treatments. The paper will discuss learnings on setting sand plugs between fracs, frac designs, and equipment operation/limitations. As a result of the learnings, the average treatment time decreased from 24 hr/zone on the first well to 13 hr/zone on the second. The paper will also discuss additional changes made during the stimulation execution to increase the effectiveness of the hydrajet tool and increase the probability of setting a successful sand plug. The process for designing and placing successful sand plugs was optimized from well to well and can furthermore be tailored to fit other fields. Learnings and techniques applied in this work can be used to improve and optimize fracturing treatments of similar nature in other geographic/geologic areas. Introduction The TTHB field is a tight gas field in southwestern Wyoming (Fig. 1) which has been produced since 1953. Production is primarily from relatively shallow, normal pressure, sweet gas formations. Based on the nature of these tight gas sands, TTHB wells will not produce without hydraulic fracturing. Formation properties are listed in Table 1.