Jeff O'Block has designed and built over a dozen commercial software applications. He specializes in custom software and has several mobile applications available for sale to new clients. Chorus Logistics (Last startup) has the latest set of commercial products built for Commodity Tracking. The Chorus Logistics product line was sold to W Energy software in 2020. Jeff co founded PSC Energy, which was the original developer of GMS, one of the most successful energy trading platforms. Built originally to service pipelines during deregulation, GMS became a very popular trade capture, scheduling and accounting system. Jeff sold his company and the software to Altra Energy in 2000. The software is now currently supported by Sungard.Jeff has assisted pipeline companies in authoring tariffs, and is an expert in pipeline operations. Jeff co founded Texas Cedar Clearing, and his company grew to be one of Texas's premiere oil services company from seismic line clearing to road building, transportation and site preparation and cleanup. Jeff's company is also active in pipeline construction and right away work.Jeff co founded Confirmation Corporation, which was sold to the NYMEX in 2002. The software provide confirmation services to subscribed trading companies.Jeff's hobbies include breeding cattle, whitetail deer and exotic species including Axis, Black Buck Antelope and Elk for sale to ranches and collectors all over North America. Jeff operates a ranch in Edwards County Texas (www.RockingORanch.com) where he hopes to retire someday.Jeff is also a commercial pilot and has flown over 3000 hours.Specialties: Math models. Optimization and Linear programming models. Data mining and modelling. Natural Gas/Commodities physical and financial Trading, Pipeline Scheduling, and Accounting Systems. Pipeline operations and tariffs.