Baker Hughes BKR, -6.38% on Friday reported that the number of active U.S. rigs drilling for oil rose by three to 602 this week. That followed an increase of eight the week before. The total active U.S. rig count, which includes those drilling for natural gas, climbed by one to 764, according to Baker Hughes. Oil prices continued their sharp decline, with November West Texas Intermediate crude CLX22, -5.58% down $4.54, or 5.4%, at $78.95 a barrel on the New York Mercantile Exchange.