Darryl Cuttell, CEO of Hamilton, Ohio-based Darana Hybrid, alleges Elon Musk's company SpaceXAI owes his construction business nearly $570 million in unpaid dues for data center work, according to a report published Friday by the Daily Memphian. Darana Hybrid filed two mechanics' liens this week totaling approximately $137 million, which Cuttell said represent only a portion of what remains unpaid from roughly $1.5 billion in total work performed for Musk's companies beginning in 2024. Payments stopped arriving after xAI and SpaceX formally merged earlier this year, with Darana Hybrid claiming the combined company has yet to pay nearly $200 million owed to vendors. SpaceXAI had not responded to the Daily Memphian's request for comment, and the claims have not been adjudicated in court. The dispute emerges amid financial turmoil for Cuttell's International Hot Rod Association, which has faced allegations of unpaid racers, sponsors and vendors following its June Triple Crown event. Earlier this month, the IHRA canceled the remainder of its 2026 Nitro Series season, following its earlier decision to shut down its Nitro Outlaw Drag Racing Series entirely. Cuttell purchased Rockingham Speedway in December 2025, and The Athletic's Jordan Bianchi reported that the prospect of NASCAR returning to Rockingham in 2027 now appears doubtful due to ownership instability.