The U.S. Army Reserve as a whole is authorized to have only 207 General Officers, or those in the ranks of O-7 through O-10. The Secretary of the Army mandates that only 115 of these positions can be actively filled at any given time. Army generals are paid for their military service based on rank and time in service. A Reserve drill weekend consists of 16 hours of service, broken into four-hour blocks. All pay figures are as of 2011.

Brigadier General (O-7)

The drill pay for a Brigadier General, at the pay rate of O-7 starts at $263.97 for one four-hour drill period, or $1,055.88 for an entire Reserve drill weekend. The pay increases with time in service to a maximum of $384.69 for one four-hour drill period, or a total of $1,538.76 for an entire drill weekend.

Major General (O-8)

The drill pay for a Major General at the pay rate of O-8 starts at $317.69 for a four-hour drill period, or a total of $1,270.76 for an entire Reserve drill weekend. Pay is maxed out at $457.98 for one four-hour drill period, or a total of $1,831.92 for an entire Army Reserve drill weekend.

Lieutenant General (O-9)

The pay rate for an Army Reserve Lieutenant General paid at the pay grade of O-9 starts at $448.99 for one four-hour drill period, or $1,795.96 for an entire drill weekend. The pay for a Lieutenant General maxes out at $556.95 for a four-hour drill period, and $2,227.80 for an entire Reserve drill weekend.

General (O-10)

An Army Reserve General, commonly referred to as a "Four-Star General," is paid at the beginning rate of $513.36 per four-hour drill period, or $2,053.44 for an entire drill weekend. The O-10's pay maxes out at a rate of $631.23 for a four-hour drill period and $2,524.92 for an entire drill weekend.