The number of active oil and natural gas rigs in the United States rose by 6 to 1,806 for the week ending November 9, 2012, up 0.3% from the previous week but down some 10.4% from a year-ago.

The highest weekly rig count in the United States since 1940 was recorded on December 28, 1981, at 4,530; the lowest was recorded on April 23, 1999, at 488.

The number of rigs in Canada fell 3.5% to 370 from 383 last week, and was 26.0% below the year-ago level.

The highest rig count for Canada was 727 on February 3, 2006; the lowest was 29, recorded on April 24, 1992.

Source: Baker Hughes Inc.