Washington Gas Light Co. has agreed to drastically scale back proposed rate increases for its D.C. consumers, walking away from a yearlong case with next to nothing, under a settlement agreement reached last week with the District government and other parties.

The 8.1 percent rate increase that Washington Gas sought for its residential customers has been slashed to less than 1 percent, according to details of the deal released by the D.C. Public Service Commission, the District’s utility regulator. The proposed 5.1 percent increase for commercial gas clients is now 1.7 percent.