claim: In 2006, Gray Matters was released.
evidence: The McFarlin Building is a general office building on the northeast corner of Fifth Street and Main -LRB- Bartlett Square -RRB- in downtown Tulsa , Oklahoma .. The five-story building was built in 1918 for oilman Robert M. McFarlin , and is on the National Register of Historic Places .. Robert M. McFarlin. Robert M. McFarlin. It is also a contributing property for the Oil Capital Historic District .. Oil Capital Historic District. Oil Capital Historic District