Calling it the “natural conclusion” of their partnership, Yamaha’s MotoGP team and Malaysian oil giant Petronas have split ways after three years of racing sponsorship. Concluding a deal that is reportedly worth $8 million a year to the factory MotoGP team, Yamaha’s loss of Petronas will surely be felt in the team’s pocketbook, assuming of course that the Japanese manufacturer cannot replace the company with another on its sponsor roster.

After losing title sponsor Fiat for the 2011 season (due almost entirely to Yamaha’s inability to retain Valentino Rossi), Petronas and Yamaha Motor Kenkana Indonesia (Yamaha’s Indonesian arm) were left as the team’s main backers and official sponsors. Now with the loss of Petronas, many of the names on the side of the Yamaha YZR-M1 are those belonging to the tuning fork brand, leaving the financial burden for Yamaha’s MotoGP racing effort to come squarely out of one Yamaha coffer or another.

Surely to be taken as a sign of the decreased value of racing in MotoGP to race sponsors, this news has to be especially troubling for Yamaha, as it continues to lose its biggest sponsorship accounts, one after another. While it would appear that the Japanese manufacturer will have to foot another $8 million a year out its internal budget, the only silver lining to the situation could be the hope that the loss of Petronas is making way for a more lucrative sponsor. We wouldn’t hold our breath on that one though.