"… nental Carbon plant until the city and residents, including members of the Ponca Tribe, filed a string of lawsuits that brought multi-million dollar settlements …"

"… 20 binders to hold. Those complaints, some coming from members of the Ponca Tribe of Indians living nearest the plant, blamed Continental Carbon Co., manufa …"

"… their claims to homesteads.Enmeshed with carbon black, the people — from Ponca Tribe members to other homeowners to City Hall itself — fought back in court. …"

"… and others living in the area of the company’s Ponca City plant,” the Ponca Tribe and officials with the union representing plant workers challenged the sta …"

"… , one by town residents, businesses and City Hall, and another by the Ponca Tribe of Indians. In 2006, the plant, while denying that it caused the …"