Oman Air (WY) earning rates in Flying Blue:

First Class (P, F) - 275%
Business Class (J, C, D) - 175%
Business Class (R) - 150%
Economy Class (Y, H, M, B) - 100%
Economy Class (K, I, Q, T) - 50%
Economy Class (G, L, N, U, O) - 25%
Economy Class (E) - 10%
All other fare classes - no earning

Minimum mileage: 500 miles (domestic), 750 miles (international)