Who Dat (MC 503) is a large oil and gas field located in the US Central Gulf of Mexico. The field is one of a trio of LLOG Exploration discoveries made in late-2007 and early-2008. LLOG is developing the field via subsea wells tied back to the OPTI-EX semi-submersible facility. LLOG's nearby Dome Patrol (MC 505) discovery is a subsea tie-back to the Who Dat facility. Dome Patrol commenced production in Q4 2022. We have included the incoming processing tariffs from Dome Patrol in our model.