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
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
AT&T INC Common 00206R102 55,697 2,264,100 SH   SOLE   2,264,100 0 0
ABBVIE INC Common 00287Y109 104,556 772,200 SH   SOLE   772,200 0 0
ALLETE INC Common 018522300 36,167 545,100 SH   SOLE   545,100 0 0
ALLIANT ENERGY CORP Common 018802108 29,137 474,000 SH   SOLE   474,000 0 0
AMERICAN ELECTRIC POWER CO INC Common 025537101 73,560 826,800 SH   SOLE   826,800 0 0
ARCHER DANIELS MIDLAND CO Common 039483102 43,224 639,500 SH   SOLE   639,500 0 0
AVISTA CORP Common 05379B107 26,811 631,000 SH   SOLE   631,000 0 0
BP PLC ADR Common 055622104 33,080 1,242,200 SH   SOLE   1,242,200 0 0
BLACK HILLS CORP Common 092113109 45,447 644,000 SH   SOLE   644,000 0 0
BRISTOL MYERS SQUIBB CO Common 110122108 39,904 640,000 SH   SOLE   640,000 0 0
CMS ENERGY CORP Common 125896100 53,666 825,000 SH   SOLE   825,000 0 0
CARDINAL HEALTH INC Common 14149Y108 57,489 1,116,500 SH   SOLE   1,116,500 0 0
CATERPILLAR INC Common 149123101 117,222 567,000 SH   SOLE   567,000 0 0
CENTERPOINT ENERGY INC Common 15189T107 48,619 1,742,000 SH   SOLE   1,742,000 0 0
CHEVRON CORP Common 166764100 84,187 717,400 SH   SOLE   717,400 0 0
CINCINNATI FINANCIAL CORP Common 172062101 49,024 430,300 SH   SOLE   430,300 0 0
CISCO SYSTEMS Common 17275R102 91,310 1,440,900 SH   SOLE   1,440,900 0 0
COCA COLA CO Common 191216100 109,971 1,857,300 SH   SOLE   1,857,300 0 0
CONSOLIDATED EDISON INC Common 209115104 60,516 709,286 SH   SOLE   709,286 0 0
CUMMINS INC Common 231021106 50,063 229,500 SH   SOLE   229,500 0 0
DOMINION RESOURCES INC Common 25746U109 63,399 807,012 SH   SOLE   807,012 0 0
DONEGAL GROUP INC Common 257701201 9,496 664,500 SH   SOLE   664,500 0 0
DOW INC Common 260557103 63,271 1,115,500 SH   SOLE   1,115,500 0 0
DUKE ENERGY CORP Common 26441C204 79,591 758,731 SH   SOLE   758,731 0 0
EASTMAN CHEMICAL CO Common 277432100 42,681 353,000 SH   SOLE   353,000 0 0
EMERSON ELECTRIC CO Common 291011104 72,656 781,500 SH   SOLE   781,500 0 0
EVERGY INC Common 30034W106 81,903 1,193,751 SH   SOLE   1,193,751 0 0
EVERSOURCE ENERGY CO Common 30040W108 66,870 735,000 SH   SOLE   735,000 0 0
EXXON MOBIL CORP Common 30231G102 92,831 1,517,100 SH   SOLE   1,517,100 0 0
FLOWERS FOODS INC Common 343498101 47,413 1,726,000 SH   SOLE   1,726,000 0 0
GALLAGHER ARTHUR J Common 363576109 79,982 471,400 SH   SOLE   471,400 0 0
GENERAL MILLS INC Common 370334104 23,987 356,000 SH   SOLE   356,000 0 0
GENUINE PARTS CO Common 372460105 53,697 383,000 SH   SOLE   383,000 0 0
GRAINGER WW INC Common 384802104 61,152 118,000 SH   SOLE   118,000 0 0
HUBBELL INC Common 443510607 59,565 286,000 SH   SOLE   286,000 0 0
ILLINOIS TOOL WORKS Common 452308109 62,070 251,500 SH   SOLE   251,500 0 0
INTEL CORP Common 458140100 54,796 1,064,000 SH   SOLE   1,064,000 0 0
IBM CORP Common 459200101 50,577 378,400 SH   SOLE   378,400 0 0
INTERNATIONAL PAPER CO Common 460146103 30,537 650,000 SH   SOLE   650,000 0 0
JOHNSON & JOHNSON Common 478160104 59,370 347,050 SH   SOLE   347,050 0 0
KELLOGG CO Common 487836108 54,821 851,000 SH   SOLE   851,000 0 0
KIMBERLY CLARK CORP Common 494368103 68,987 482,700 SH   SOLE   482,700 0 0
LEGGETT & PLATT INC Common 524660107 57,892 1,406,500 SH   SOLE   1,406,500 0 0
LOCKHEED MARTIN Common 539830109 35,825 100,800 SH   SOLE   100,800 0 0
MDU RESOURCES GROUP INC Common 552690109 47,386 1,536,500 SH   SOLE   1,536,500 0 0
MSC INDUSTRIAL DIRECT CO Common 553530106 55,984 666,000 SH   SOLE   666,000 0 0
MARATHON PETROLEUM GROUP Common 56585A102 78,548 1,227,500 SH   SOLE   1,227,500 0 0
MCDONALDS CORP Common 580135101 69,269 258,400 SH   SOLE   258,400 0 0
MERCK & CO INC Common 58933Y105 76,372 996,500 SH   SOLE   996,500 0 0
MERCURY GENERAL CORP Common 589400100 29,820 562,000 SH   SOLE   562,000 0 0
METLIFE INC Common 59156R108 42,331 677,400 SH   SOLE   677,400 0 0
NATIONAL FUEL GAS CO Common 636180101 39,835 623,000 SH   SOLE   623,000 0 0
NORTHERN TRUST CORP Common 665859104 32,534 272,000 SH   SOLE   272,000 0 0
NORTHWEST NATURAL HOLDING CO Common 66765N105 18,732 384,000 SH   SOLE   384,000 0 0
NUCOR CORP Common 670346105 86,240 755,500 SH   SOLE   755,500 0 0
OGE ENERGY CORP Common 670837103 68,547 1,786,000 SH   SOLE   1,786,000 0 0
PPL CORP Common 69351T106 46,500 1,546,900 SH   SOLE   1,546,900 0 0
PAYCHEX INC Common 704326107 59,828 438,300 SH   SOLE   438,300 0 0
PEPSICO INC Common 713448108 99,223 571,200 SH   SOLE   571,200 0 0
PFIZER INC Common 717081103 110,807 1,876,500 SH   SOLE   1,876,500 0 0
PHILLIPS 66 Common 718546104 52,352 722,500 SH   SOLE   722,500 0 0
PRINCIPAL FINANCIAL GROUP Common 74251V102 81,299 1,124,000 SH   SOLE   1,124,000 0 0
PROCTER & GAMBLE CO Common 742718109 114,359 699,100 SH   SOLE   699,100 0 0
PRUDENTIAL FINANCIAL INC Common 744320102 43,296 400,000 SH   SOLE   400,000 0 0
PUBLIC SERVICE ENTERPRISE GRP INC Common 744573106 65,495 981,500 SH   SOLE   981,500 0 0
QUALCOMM INC Common 747525103 119,597 654,000 SH   SOLE   654,000 0 0
REALTY INCOME CORP Common 756109104 42,238 590,000 SH   SOLE   590,000 0 0
ROYAL DUTCH SHELL ADR Common 780259107 14,110 325,500 SH   SOLE   325,500 0 0
SCHLUMBERGER LTD Common 806857108 24,679 824,000 SH   SOLE   824,000 0 0
SMUCKERS J M Common 832696405 28,658 211,000 SH   SOLE   211,000 0 0
SONOCO PRODUCTS Common 835495102 33,993 587,200 SH   SOLE   587,200 0 0
SOUTH JERSEY INDUSTRIES INC Common 838518108 22,241 851,500 SH   SOLE   851,500 0 0
SOUTHERN COMPANY Common 842587107 84,936 1,238,500 SH   SOLE   1,238,500 0 0
SOUTHWEST GAS HOLDINGS INC Common 844895102 27,670 395,000 SH   SOLE   395,000 0 0
SPIRE INC Common 84857L101 34,110 523,000 SH   SOLE   523,000 0 0
SYSCO CORP Common 871829107 67,309 856,900 SH   SOLE   856,900 0 0
TEXAS INSTRUMENTS INC Common 882508104 75,200 399,000 SH   SOLE   399,000 0 0
3M CO Common 88579Y101 61,016 343,500 SH   SOLE   343,500 0 0
UGI CORP Common 902681105 15,288 333,000 SH   SOLE   333,000 0 0
UNITED PARCEL SERVICES INC Common 911312106 84,900 396,100 SH   SOLE   396,100 0 0
VALERO ENERGY CORP Common 91913Y100 59,187 788,000 SH   SOLE   788,000 0 0
VANGUARD DIVIDEND APPREC ETF Common 921908844 44,569 259,500 SH   SOLE   259,500 0 0
VANGUARD S&P 500 ETF Common 922908363 44,858 102,750 SH   SOLE   102,750 0 0
VANGUARD LARGE-CAP ETF Common 922908637 40,999 185,500 SH   SOLE   185,500 0 0
VANGUARD GROWTH ETF Common 922908736 42,198 131,500 SH   SOLE   131,500 0 0
VERIZON COMMUNICATIONS INC Common 92343V104 112,545 2,166,000 SH   SOLE   2,166,000 0 0
WP CAREY INC Common 92936U109 42,830 522,000 SH   SOLE   522,000 0 0
WEC ENERGY GROUP INC Common 92939U106 85,436 880,151 SH   SOLE   880,151 0 0
WALGREENS BOOTS ALLIANCE INC Common 931427108 40,502 776,500 SH   SOLE   776,500 0 0
WILEY JOHN & SONS Common 968223206 9,564 167,000 SH   SOLE   167,000 0 0
XCEL ENERGY CORP Common 98389B100 36,626 541,000 SH   SOLE   541,000 0 0
EATON CORP Common G29183103 65,326 378,000 SH   SOLE   378,000 0 0