Table schema:
CREATE TABLE table_name_15 (oklahoma_vs VARCHAR, current_streak VARCHAR, at_neutral_site VARCHAR)

Question: What is Oklahoma vs. when Current Streak is l 1, and Neutral Site is osu, 7-6?
SQL: SELECT oklahoma_vs FROM table_name_15 WHERE current_streak = "l 1" AND at_neutral_site = "osu, 7-6"