They have 10 Key Values:
1. Grassroots Democracy
2. Social Justice and Equal Opportunity
3. Ecological Wisdom
6. Community-based Economics
7. Feminism and Gender Equality
8. Respect for Diversity
9. Personal and Global Responsibility
10. Future Focus and Sustainability
Its headquarters is in Washington D.C. and its leadership is not confined to one person (an idea that I really like). The current co-chairs of the Party are: Claudia Ellquist (Arizona), Sanda Everett (California), Mike Feinstein (California), Farheen Hakeem (Minnesota), Jason Nabewaniec (New York), David Strand (Minnesota), and Craig Thorsen (California).
Ralph Nader ran for President of the United States as a member of the Green Party in 1996 and 2000.
The party has gotten nearly 200 of its members elected to office in the United States, including Richard Carroll, who is a Representative in the Arkansas State Legislature and Gayle McLaughlin, who is the mayor of Richmond, California.
This political party does have an Oklahoma affiliate. You can view information about them at their website: Green Party of Oklahoma.
The Green Party of Oklahoma was formed in 2002 and has its headquarters in Norman, Oklahoma.
Interestingly enough, the OK Green Party is further subdivided into 4 Green Parties: the Oklahoma County Green Party, the Green Country Green Party (Tulsa), Cleveland County Green Party, and Rural Greens.
I was unable to figure out if the OK Green Party has a leader but on their Contact Us page, it does list Rachel Jackson as the State Facilitator.
Poli-Tea has an article about them today that was interesting: Green Party Launches Campaign for a "Green New Deal."
As part of this "Green New Deal" they propose cutting military spending by at least 70%, establishing single-payer health care, providing tuition-free public higher education, the legalization of marijuana, and passing electoral and campaign finance reforms.