BILLINGS, Mont. (AP) — Conservationists claimed in a lawsuit filed Tuesday that a Trump administration committee reviewing royalties paid by companies on fossil fuels extracted from public lands is stacked with industry supporters who conduct some meetings in secret.

The Western Organization of Resource Councils asked a federal judge in Montana to disband the U.S. Interior Department's Royalty Policy Committee and strike down its recommendations.

The 20-person panel — comprised of representatives from industry, state government, tribes and academia — was established last year by U.S. Interior...