This story is also called “Naruto : Since My Village Is On The Verge Of Bankruptcy, I Dug Out Some Oil”.
“Gaara, come on!”
“If you dig out oil, Sunagakure will prosper.”
Gaara was puzzled. He was indignant. “Teacher Mukaze, shouldn’t hard work mean training hard as well? You always ask me to dig in the sand. What kind of oil is there to help me train?”
“Scientifically speaking, digging in the sand is a very good exercise.”
“Just dig hard, everything will be fine.”
“Once oil is dug, everyone in our Sunagakure will be able to wear a clean white cloth on their heads, and I will be the richest person in the world.”