Shelter Ins Retirement Plan 13F-HR Quarterly holdings report by institutional manager

The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE

OMB APPROVAL

OMB Number:		3235-0006
Expires:	Oct 31, 2018
Estimated average burden
hours per response:		23.8

COLUMN 1	COLUMN 2	COLUMN 3	COLUMN 4	COLUMN 5			COLUMN 6	COLUMN 7	COLUMN 8
			VALUE	SHRS OR	SH/	PUT/	INVESTMENT	OTHER	VOTING AUTHORITY
NAME OF ISSUER	TITLE OF CLASS	CUSIP	(x$1000)	PRN AMT	PRN	CALL	DISCRETION	MANAGER	SOLE	SHARED	NONE
VANGUARD TOT INT ST IDX-INST	COM	921909784	8,168	80,500	SH		SOLE	0	0	0	80,500
BERKSHIRE HATHAWAY	COM	084670108	7,650	25	SH		SOLE	0	0	0	25
WAL-MART STORES	COM	931142103	7,622	81,824	SH		SOLE	0	0	0	81,824
VISA INC/A	COM	92826C839	7,230	54,800	SH		SOLE	0	0	0	54,800
ORACLE CORP	COM	68389X105	6,921	153,300	SH		SOLE	0	0	0	153,300
UNION PACIFIC CORPORATION	COM	907818108	6,789	49,112	SH		SOLE	0	0	0	49,112
CME GROUP INC	COM	12572Q105	6,754	35,900	SH		SOLE	0	0	0	35,900
LOWE'S CORP	COM	548661107	6,742	73,000	SH		SOLE	0	0	0	73,000
PROCTER & GAMBLE CO	COM	742718109	6,398	69,600	SH		SOLE	0	0	0	69,600
INTEL CORP	COM	458140100	6,153	131,100	SH		SOLE	0	0	0	131,100
PEPSICO INCORPORATED	COM	713448108	5,844	52,900	SH		SOLE	0	0	0	52,900
ABBVIE INC	COM	00287Y109	5,771	62,600	SH		SOLE	0	0	0	62,600
CATERPILLAR TRACTOR CO	COM	149123101	4,651	36,600	SH		SOLE	0	0	0	36,600
VANGUARD TOT STK MKT-INST	COM	922908801	4,639	74,700	SH		SOLE	0	0	0	74,700
MEDTRONIC INC	COM	G5960L103	4,632	50,922	SH		SOLE	0	0	0	50,922
ABBOTT LABS	COM	002824100	4,528	62,600	SH		SOLE	0	0	0	62,600
AMERICAN EXPRESS COMPANY	COM	025816109	4,356	45,700	SH		SOLE	0	0	0	45,700
DEERE & CO	COM	244199105	4,281	28,700	SH		SOLE	0	0	0	28,700
INTERNATIONAL BUSINESS MACHINE	COM	459200101	4,274	37,600	SH		SOLE	0	0	0	37,600
ISHARES CORE MSCI EMERGING	COM	46434G103	4,267	90,500	SH		SOLE	0	0	0	90,500
EXXON MOBIL CORPORATION	COM	30231G102	4,113	60,312	SH		SOLE	0	0	0	60,312
PFIZER INC	COM	717081103	4,112	94,200	SH		SOLE	0	0	0	94,200
3M COMPANY	COM	88579Y101	4,059	21,300	SH		SOLE	0	0	0	21,300
ROYAL DUTCH SHELL PLC - ADR B	ADR	780259107	3,668	61,200	SH		SOLE	0	0	0	61,200
PHILIP MORRIS INTERNATIONAL	COM	718172109	3,592	53,800	SH		SOLE	0	0	0	53,800
ILLINOIS TOOL WORKS	COM	452308109	3,509	27,700	SH		SOLE	0	0	0	27,700
BHP GROUP LTD-SPON ADR	ADR	088606108	3,366	69,700	SH		SOLE	0	0	0	69,700
VERISK ANALYTICS INC - CLASS A	COM	92345Y106	3,151	28,900	SH		SOLE	0	0	0	28,900
LINDE PUBLIC LIMITED CO	COM	G5494J103	2,637	16,900	SH		SOLE	0	0	0	16,900
JM SMUCKER CO	COM	832696405	2,543	27,200	SH		SOLE	0	0	0	27,200
SCHLUMBERGER LTD	COM	806857108	2,497	69,200	SH		SOLE	0	0	0	69,200
OAKTREE CAPITAL GROUP LLC	COM	674001201	2,429	61,100	SH		SOLE	0	0	0	61,100
ENBRIDGE INC.	COM	29250N105	2,294	73,800	SH		SOLE	0	0	0	73,800
GILEAD SCIENCES INC	COM	375558103	2,214	35,400	SH		SOLE	0	0	0	35,400
NEXTERA ENERGY INC	COM	65339F101	2,138	12,300	SH		SOLE	0	0	0	12,300
TARGET CORP	COM	87612E106	1,976	29,900	SH		SOLE	0	0	0	29,900
APACHE CORP	COM	037411105	1,822	69,400	SH		SOLE	0	0	0	69,400
DISCOVERY INC-C	COM	25470F302	1,805	78,200	SH		SOLE	0	0	0	78,200
FRANKLIN RESOURCES	COM	354613101	1,486	50,100	SH		SOLE	0	0	0	50,100
BB&T CORP	COM	054937107	1,486	34,300	SH		SOLE	0	0	0	34,300
ECOLAB INC	COM	278865100	1,424	9,666	SH		SOLE	0	0	0	9,666
GENERAL ELECTRIC COMPANY	COM	369604103	1,358	179,400	SH		SOLE	0	0	0	179,400
CORE LABORATORIES N.V.	COM	N22717107	1,289	21,600	SH		SOLE	0	0	0	21,600
CIGNA CORP	COM	125523100	1,224	6,446	SH		SOLE	0	0	0	6,446
TEVA PHARMACEUTICAL INDUSTRIES LTD	COM	881624209	486	31,500	SH		SOLE	0	0	0	31,500