Abstract: A method of controlling subterranean placement of underground fluids, such as liquids, includes(a) positioning a tubing joint longitudinally in a borehole in the earth to locate the split and gun at selected depth,(b) rotating the tubing to orient the split azimuthally so that a gun in the tubing is aimed in a desired direction laterally,(c) discharging the gun to cause its projectile to travel in said desired direction in the formation, thereby opening up a lateral shot hole in the formation,(d) and pumping fluid under pressure down the borehole to discharge into the shot hole into a selected zone laterally spaced from the tubing.