Genesis 13:7
And there was a strife between the herdsmen of Abram's cattle and the herdsmen of Lot's cattle: and the Canaanite and the Perizzite dwelled then in the land.
Torrey's Topical Textbook—AKJV

Genesis 26:20
And the herdsmen of Gerar did strive with Isaac's herdsmen, saying, The water is ours: and he called the name of the well Esek; because they strove with him.
Torrey's Topical Textbook—AKJV