Neighboring States of OK

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Across
  1. 3. river that serves as a border of OK and TX
  2. 7. resources that cannot renew themselves
  3. 9. state to the E of OK; on top of Kansas
  4. 10. nickname of OK's northeastern region
  5. 11. word meaning completely surrounded by land
  6. 12. state bordering OK to the N
Down
  1. 1. drilled on the Red River causing argument
  2. 2. state bordering OK to the NW, below Colorado
  3. 4. resources that will renew themselves
  4. 5. state bordering OK, on top of NM
  5. 6. state bordering OK to the S
  6. 8. state bordering OK to the E; below Missouri