Bring water, oil, and salt to a boil in a saucepan. Add rice, place a lid on top, then turn heat down to low and simmer until rice is tender, 12-15 minutes. Fluff with a fork then add lime juice to taste and chopped cilantro. Set aside.
For the Black Bean-Mango Salsa:
Combine all ingredients together in a large bowl then stir to combine.
For the Chili-Lime Shrimp:
Whisk together all ingredients except shrimp in a large bowl then add shrimp and marinate for 10 minutes. Heat a large skillet over medium-high heat then mist with olive oil or nonstick spray. Add shrimp, being careful not to crowd the pan (may need to do 2 batches,) along with a little of the marinade then saute until no longer pink in the center.
Spoon rice into bowls then top with black bean-mango salsa and cooked shrimp.