Abstract: A method for determining azimuth in well bore hole where the well is being drilled utilizing Measurement-While-Drilling (MWD) equipment, including gravitometer and magnetometer instruments in the presence of an adjacent well. Interference fields introduced by adjacent wells are modeled as a single or series of magnetic dipoles. The interference fields axial interference field IBz is tracked and a position determined where the IBz component is at its maximum, minimum or a zero value. The total magnetic field is then measured at that point and the magnetic inclination and therefrom, the azimuth may be determined. Alternately, the interference field in the x,y plane (IB(x,y)) may be tracked and a position determined where the IB(x,y) component is equal to a minimum, maximum or zero value. The azimuth may then be determined by an alternate numeric or curve fitting methods.