Schedule VI-Supplementary Information Concerning Property-Casualty Insurance Operations

12 Months Ended

Dec. 31, 2023

Supplemental Information For Property Casualty Insurance Underwriters [Abstract]

Schedule VI-Supplementary Information Concerning Property-Casualty Insurance Operations

RLI CORP. AND SUBSIDIARIES

SCHEDULE VI—SUPPLEMENTARY INFORMATION CONCERNING

PROPERTY-CASUALTY INSURANCE OPERATIONS

Years ended December 31, 2023, 2022 and 2021

(in thousands)	Deferred policy		Claims and		Unearned		Net		Net
	acquisition		claim adjustment		premiums,		premiums		investment
Affiliation with Registrant (1)	costs		expense reserves		gross		earned		income
2023	$	146,566	$	2,446,025	$	892,326	$	1,294,306	$	120,383
2022	$	127,859	$	2,315,637	$	785,085	$	1,144,436	$	86,078
2021	$	103,553	$	2,043,555	$	680,444	$	980,903	$	68,862

	Claims and claim adjustment
	expenses incurred related to:				Amortization		Paid claims and		Net
	Current		Prior		of deferred		claim adjustment		premiums
	year		year		acquisition costs		expenses		written
2023	$	712,960	$	(108,547)	$	418,325	$	491,285	$	1,427,747
2022	$	636,955	$	(122,579)	$	369,632	$	374,297	$	1,241,536
2021	$	582,065	$	(125,463)	$	317,468	$	327,453	$	1,057,533

(1) Consolidated property-casualty insurance operations.

(2) See the accompanying reports of independent registered public accounting firms starting on page 90 of this report.