Frank Holloway Mahan passed away peacefully in his home on March 20th, 2023, surrounded by his family. Frank was born April 18th, 1942, in Fairfax, OK to Mary Dee and Frank Perry Mahan and was one of three children. Mary Dee, a teacher and Frank, a State Senator lived in what was referred to as the "Big House" where they raised Marcia, Cordelia and Frank in fabled Osage County. After High School "Frankie" left Fairfax to attend Oklahoma State University for a time and soon thereafter went on a year-long California adventure with one of his Fraternity brothers. When he returned he began pursuing opportunities in the oil and gas industry as well as his hometown sweetheart Carol Rust. Professionally, he was willing to take any position he could take to get his foot in the door of the industry he so desired to become a part of. This then led to an opportunity in Odessa, TX where he and Carol moved to start their family. They had a son during this time they named Joseph Frank Mahan. The need to care for his new family led him to work even harder and soon thereafter he landed his first sales job with an oilfield supply company. He rose quickly and was soon able to return to Oklahoma to make a name for himself in his home state. His work ethic, strong business sense and ability to bring people together were just a few of the traits that contributed to his successes. As the years passed, he started multiple oil and gas companies in the oil boom of the 70's and early 80's and enjoyed success like few others. He lived larger than life during these years as this small-town boy had become a successful businessman. He was as well known for his lifestyle and antics as he was for his business dealings. He was brash and possessed an uncanny self-confidence as well as a disarming sense of humor. His presence was well beyond his stature. Frank was truly one of a kind. In these years he would marry again, and not long after William Matthew Mahan was born. This was to be the highlight of what would become turbulent times for Frank during the collapse of his chosen industry and Penn Square Bank. This would lead to some difficult years, but Frank never relented as his fighting spirit carried him through. He was always in pursuit of new opportunities, forging new business relationships and working the next deal whatever it may be. His friendships deepened and his zest for life never relented.In the Spring of 1986, he was to meet the love of his life, Jasonna Davis. Frank wasted no time and by summer they were married in a private ceremony in Miami, OK. Their great adventure would endure for more than 37 years as they traveled, celebrated with dear friends, and enjoyed valuable time with family and one another. They lived life fully as Frank shared his love of Grand Lake, the Caribbean, food and fine wine. Their home was all too frequently filled with dear friends and the music he so enjoyed. He loved Guy Clark, Jerry Jeff Walker, James Taylor, Nancy Griffith, Chris Wall, John Prine and so many other great artists. He would dance and sing without inhibition. Being with him in his element was both intoxicating and terrifying. He knew no boundaries, feared nothing, knew what he wanted and would stop at nothing to get it. He was the kind of friend you would want to have in your corner and someone who knew how to have fun like no other. He adored his mother and his sisters and would do anything for his family. His nephew Joseph Tillman was more of a son to him, and they were never out of touch. In 1990 Frank was able to connect with his true first child and daughter Elisabeth. This had been something that he had sought for many years and when she appeared his heart was made full. Any chance that they could be together was a true gift to him. Liz, her husband Gary and their four children Wendybeth, Sam, Spencer and TG. completed the family journey for him and changed his heart forever. In 2003 he suffered a massive stroke. This would change the course of Frank and Jasonna's life. Here he would prove what a fighter he really was and it would also be here that the love of his adoring wife would be put on full display. With her guiding touch and much rehabilitation Frank and Jasonna made the most of the life that they had. They continued to spend time with friends and family as much as possible. Frank expressed his feelings more freely and these were years when he could take in the love of the people that surrounded him. He deeply adored his children and especially his grandchildren Josie, Sam and Ayden and never missed an opportunity to attend a play, a sporting event or a birthday party. He was Papa now and wore it well. His humor never left him and as his days became few the sweetest thing to hear was his unmistakable laugh. He left this world loved and left a hole in the universe that will never be filled. Frank is survived by his wife, Jasonna Davis Mahan; Son, Joe Mahan and grandchildren Josie and Sam Mahan; Son, Matt Mahan and grandson Ayden Mahan; Daughter, Liz Hamm and husband Gary Hamm and grandchildren Wendybeth, Sam, Spencer and TG; Sister, Marcia Zervas; Nephew, Joseph Tillman and wife Cindy Tillman and daughter Cory Tillman; Nephew, Chuck Tillman wife Manon Tillman and children Chanlie and JP; Nephew, Chris Zervas and wife Jenna Zervas children Zoe, Elle, Nash, Kit and Tia ; Niece, Diane Shadwick and husband Jay children Mary, Graham and Blake. The family would like to give a special thanks to Frank's Caregiver Jill Sirotnak, nurses Betsy and Lisa, and aides Candace and Jennifer for their loving care.