Many dealers will do it at the first anniversary, but not all according to other posters.

If you have done 15,000 miles in one year a lot of it was likely on the highway anyway, which is a lot easier than city driving.

Still waiting to see a report of a failed engine caused by following the manufacturer's maintenance procedures. They have had this interval since 1999, and oils have improved in that time as well.

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2007 X3 3.0si, 6 MT, Premium, White

Retired:
2008 535i, 6 MT, M Sport, Premium, Space Grey
2003 X5 3.0 Steptronic, Premium, Titanium Silver
2002 325xi 5 MT, Steel Grey
2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue