Mealey's (June 17, 2015, 11:56 AM EDT) -- WASHINGTON, D.C. — A special master appointed by the U.S. Supreme Court on Dec. 19 said Wyoming is liable to Montana for excess water usage from the Tongue River for only two out of 15 years since 1950, a finding that Wyoming says could net Montana only $14,000 (State of Montana v. State of Wyoming, et al., No. 137, Original, U.S. Sup.).

(Special master’s second interim report. Document #95-150115-002X.)

In 2007, Montana sued Wyoming and North Dakota in the U.S. Supreme Court. Montana alleged that Wyoming...