But the herders of Gerar quarreled with those of Isaac and said, "The water is ours!" So he named the well Esek, because they disputed with him. (NIV)
And the herdsmen of Gerar quarreled with Isaac's herdsmen, saying, The water is ours. And he named the well Esek [contention] because they quarreled with him. (AMP)
And the herdmen of Gerar did strive with Isaac's herdmen, saying, The water is ours: and he called the name of the well Esek; because they strove with him. (KJV)