NET
20 the herdsmen of Gerar quarreled with Isaac’s herdsmen, saying, “The water belongs to us!” So Isaac named the well Esek because they argued with him about it.
Darby
20 But the shepherds of Gerar strove with Isaac's shepherds, saying, The water is ours. And he called the name of the well Esek, because they had quarrelled with him.
KJV
20 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.