  We generalize calculations of the energy-momentum tensor for classical gluon
fields in the McLerran-Venugopalan model using the small-$\tau$ power series
expansion method. Results to all orders for the energy density and pressures
are given in the leading $Q^2$ approximation and with the inclusion of running
coupling effects. The energy density and transverse pressure decrease
monotonically with time while the longitudinal pressure starts from a negative
value and increases towards zero.
