The method of the nonequilibrium statistical operator developed by Zubarev is employed to inves-tigate steady-state hot-electron transport in a strong electric field. The momentum and energy bal-ance equations which are nonlinear in the drift velocity Ve are derived to the lowest order in the electron-impurity and electron-phonon interactions. We show that these balance equations are ex-actly identical to those obtained by Lei and Ting. However, our equations cannot be reduced to those of Kalashnikov and Ferry, who previously applied a similar approach to study warm-electron transport. The origin of this difference will be demonstrated in detail. We show that our result yields better agreement with the experimental data in p-type Ge for hot heavy-hole transport.