Major Oberfield is a native of Heath, Ohio. He is a graduate of Marietta College where he received a Bachelor’s Degree in Biology. He attended the Platoon Leaders Course from May 2010 to July 2010 and May 2011 to July 2011. On 21 May 2012, he commissioned as a Second Lieutenant in the United States Marine Corps.
From January 2013 to July 2013, Second Lieutenant Oberfield attended The Basic School, where he was designated as an Infantry Officer. He attended Infantry Officer Course from October 2013 to December 2013, and upon graduation was assigned to 2d Battalion, 2d Marine Regiment.
In January 2014, Second Lieutenant Oberfield was assigned to Fox Company where he served as a platoon commander. He was promoted to First Lieutenant in May of 2014. He deployed in support of SPMAGTF-CR AF in July of 2014. Upon return in February 2015 he was assigned the billet of Executive Officer, Weapons Company. While serving in this billet he deployed in support of Forward Deployed Battalion – East. Upon return from this deployment he was assigned the billet of Company Commander, Weapons Company. First Lieutenant Oberfield finished his tour with 2d Battalion, 2d Marine Regiment in November of 2016.
In December 2016, First Lieutenant Oberfield reported to Second Recruit Training Battalion, Recruit Training Regiment, Marine Corps Recruit Depot, Parris Island, SC. From December 2016 to April 2018, he was assigned as a Series Commander for multiple companies throughout Second Recruit Training Battalion. On 1 March 2017, he was promoted to the rank of Captain. In April 2018, Captain Oberfield took command of Instructional Training Company, Support Battalion.
In December of 2019, Captain Oberfield was assigned to 3d Battalion, 2d Marines where he served as Company Commander, Fox Company and Company Commander, H&S Company. While with 3d Battalion, 2d Marines he deployed in support of Marine Rotation Force-Europe to Setermoen, Norway in 2020, and Forward Deployed Battalion-East to Okinawa, Japan in 2022. In August of 2022 he was promoted to Major.
In December of 2022, Major Oberfield was assigned to 2d Battalion, 24th Marines, Weapons Company where he is currently serving as the Inspector Instructor.
Major Oberfield’s personal decorations include the Navy and Marine Corps Commendation Medal (2nd award) and the Navy and Marine Corps Achievement Medal.