Billy Gean Chesser, passed away on Monday, January 07, 2019, at the age of 90. He was married to the love of his life Margaret for 67 years and was preceded in death by their two sons and a grandson. He is survived by his wife Margaret, brother J. L. Chesser, daughter in law Beverly Chesser, grandchildren Tracey, Brittany and Chris, nieces and nephews, family members and numerous friends who count it a blessing to have known him. Bill graduated from Melvin High School in Melvin, Texas, continuing his education at John Tarelton University in Stephenville, Texas, and in 1950 graduated from Texas A & M University with a BS degree in Chemical Engineering. Upon graduation he began his career with Millwhite/Sun Oil Company in Beaumont Texas in June 1950 as a mud engineer and drilling engineer trainee. He transferred to Sun Production Laboratories in 1954 and became supervisor of the drilling Fluid Section. Over the years he served in the research and technical services groups of Milchem, Newpark, Baker Hughes and Raw Materials Corporation where his work and dedication to the oil and gas industry were innovative and provided technical guidance on product applications and direction to numerous petroleum engineers. In 2006 he was inducted into the American Association of Drilling Engineers Drilling Fluids Hall of Fame for his seminal contributions to water-based mud technology, corrosion control, filtration control, shale stabilization, and dewatering. Throughout the years he was a member of the Society of Petroleum Engineers where he wrote many articles and his contributions were unmeasurable. Visitation will be on Thursday, January 10, 2019 at Cashner Funeral Home in Conroe, Texas from 5:00pm to 7:00pm. The funeral service will be on Friday, January 11, 2019 at Cashner Funeral Home beginning at 10:00am. In lieu of flowers donations may be made to the Make a Wish Foundation or charity of your choice.