BISMARCK, N.D. (AP) — An American Indian activist named in a federal racketeering lawsuit filed by the Dakota Access oil pipeline developer denies wrongdoing.

Krystal Two Bulls of Montana also denies evading service of the lawsuit. Texas-based Energy Transfer Partners says the tactic is preventing it from serving three other people it added as defendants five months ago to its $1 billion lawsuit against environmental groups including Greenpeace.

Two Bulls wants a federal judge to dismiss her from the lawsuit she was served with at the Phoenix airport last month.

ETP alleges the defendants worked to undermine the $3.8 billion pipeline. And company attorneys say some individual defendants are evading service by moving frequently and using fake names at hotels.

Company lawyers want more time to track them down. The judge hasn’t ruled.