We compute basic earnings per share by dividing net income attributable to Core Laboratories Inc. by the number of weighted average common shares outstanding during the period. Diluted earnings per share includes the incremental effect of contingently issuable shares from performance and restricted stock awards, as determined using the treasury stock method.

The following table summarizes the calculation of weighted average common shares outstanding used in the computation of basic and diluted earnings per share (in thousands):


	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2026		2025		2026		2025
Weighted average common shares outstanding - basic		46,030		46,632		46,052		46,702
Effect of dilutive securities:
Restricted shares		31		16		45		27
Performance shares		817		716		857		780
Weighted average common shares outstanding - diluted		46,878		47,364		46,954		47,509