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 105,962,000 3,254,500 SH   SOLE   3,254,500 0 0
ABBVIE INC Common 00287Y109 36,787,000 572,200 SH   SOLE   572,200 0 0
ALLETE INC Common 018522300 13,074,000 257,100 SH   SOLE   257,100 0 0
ALLIANT ENERGY CORP Common 018802108 14,961,000 474,000 SH   SOLE   474,000 0 0
AMERICAN ELECTRIC POWER CO INC Common 025537101 16,837,000 312,800 SH   SOLE   312,800 0 0
ARCHER DANIELS MIDLAND CO Common 039483102 44,777,000 1,096,500 SH   SOLE   1,096,500 0 0
AVISTA CORP Common 05379B107 26,625,000 716,000 SH   SOLE   716,000 0 0
BP PLC ADR Common 055622104 66,620,000 1,703,200 SH   SOLE   1,703,200 0 0
BLACK HILLS CORP Common 092113109 16,885,000 315,000 SH   SOLE   315,000 0 0
BRISTOL MYERS SQUIBB CO Common 110122108 39,700,000 821,000 SH   SOLE   821,000 0 0
CARDINAL HEALTH INC Common 14149Y108 55,190,000 1,123,500 SH   SOLE   1,123,500 0 0
CATERPILLAR INC Common 149123101 68,646,000 567,000 SH   SOLE   567,000 0 0
CENTERPOINT ENERGY INC Common 15189T107 44,572,000 2,137,000 SH   SOLE   2,137,000 0 0
CHEVRON CORP Common 166764100 104,730,000 982,500 SH   SOLE   982,500 0 0
CINCINNATI FINANCIAL CORP Common 172062101 19,467,000 430,300 SH   SOLE   430,300 0 0
CISCO SYSTEMS Common 17275R102 47,424,000 1,753,000 SH   SOLE   1,753,000 0 0
COCA COLA CO Common 191216100 78,476,000 1,857,300 SH   SOLE   1,857,300 0 0
CONSOLIDATED EDISON INC Common 209115104 28,030,000 464,286 SH   SOLE   464,286 0 0
CUMMINS INC Common 231021106 22,590,000 229,500 SH   SOLE   229,500 0 0
DOMINION RESOURCES INC Common 25746U109 56,930,000 845,145 SH   SOLE   845,145 0 0
DONEGAL GROUP INC Common 257701201 9,635,000 664,500 SH   SOLE   664,500 0 0
DOW INC Common 260557103 45,734,000 1,002,000 SH   SOLE   1,002,000 0 0
DUKE ENERGY CORP Common 26441C204 44,868,000 608,731 SH   SOLE   608,731 0 0
EASTMAN CHEMICAL CO Common 277432100 36,802,000 498,000 SH   SOLE   498,000 0 0
EMERSON ELECTRIC CO Common 291011104 43,055,000 813,000 SH   SOLE   813,000 0 0
EVERGY INC Common 30034W106 22,601,000 593,751 SH   SOLE   593,751 0 0
EXXON MOBIL CORP Common 30231G102 142,061,000 1,912,100 SH   SOLE   1,912,100 0 0
FLOWERS FOODS INC Common 343498101 27,909,000 1,569,000 SH   SOLE   1,569,000 0 0
GALLAGHER ARTHUR J Common 363576109 19,176,000 473,500 SH   SOLE   473,500 0 0
GENERAL MILLS INC Common 370334104 17,632,000 360,000 SH   SOLE   360,000 0 0
GENUINE PARTS CO Common 372460105 35,572,000 448,000 SH   SOLE   448,000 0 0
GRAINGER WW INC Common 384802104 20,025,000 118,000 SH   SOLE   118,000 0 0
HELMERICH & PAYNE INC Common 423452101 38,757,000 926,000 SH   SOLE   926,000 0 0
HUBBELL INC Common 443510607 28,635,000 286,000 SH   SOLE   286,000 0 0
ILLINOIS TOOL WORKS Common 452308109 31,451,000 251,500 SH   SOLE   251,500 0 0
INTEL CORP Common 458140100 27,803,000 1,067,000 SH   SOLE   1,067,000 0 0
IBM CORP Common 459200101 83,415,000 582,400 SH   SOLE   582,400 0 0
JOHNSON & JOHNSON Common 478160104 31,719,000 347,800 SH   SOLE   347,800 0 0
KELLOGG CO Common 487836108 42,312,000 727,000 SH   SOLE   727,000 0 0
KIMBERLY CLARK CORP Common 494368103 59,299,000 560,700 SH   SOLE   560,700 0 0
LEGGETT & PLATT INC Common 524660107 50,235,000 1,406,500 SH   SOLE   1,406,500 0 0
MDU RESOURCES GROUP INC Common 552690109 30,771,000 1,536,500 SH   SOLE   1,536,500 0 0
MSC INDUSTRIAL DIRECT CO Common 553530106 41,762,000 615,000 SH   SOLE   615,000 0 0
MARATHON PETROLEUM GROUP Common 56585A102 39,553,000 920,000 SH   SOLE   920,000 0 0
MCDONALDS CORP Common 580135101 24,415,000 258,400 SH   SOLE   258,400 0 0
MERCK & CO INC Common 58933Y105 35,521,000 676,500 SH   SOLE   676,500 0 0
METLIFE INC Common 59156R108 25,397,000 730,400 SH   SOLE   730,400 0 0
NATIONAL FUEL GAS CO Common 636180101 41,698,000 851,500 SH   SOLE   851,500 0 0
NORTHERN TRUST CORP Common 665859104 22,207,000 290,500 SH   SOLE   290,500 0 0
NORTHWEST NATURAL HOLDING CO Common 66765N105 18,902,000 384,000 SH   SOLE   384,000 0 0
NUCOR CORP Common 670346105 34,881,000 827,500 SH   SOLE   827,500 0 0
OGE ENERGY CORP Common 670837103 22,125,000 687,000 SH   SOLE   687,000 0 0
PPL CORP Common 69351T106 56,453,000 1,861,900 SH   SOLE   1,861,900 0 0
PAYCHEX INC Common 704326107 22,696,000 438,300 SH   SOLE   438,300 0 0
PEPSICO INC Common 713448108 41,064,000 446,200 SH   SOLE   446,200 0 0
PFIZER INC Common 717081103 46,942,000 1,486,500 SH   SOLE   1,486,500 0 0
PHILLIPS 66 Common 718546104 28,342,000 372,500 SH   SOLE   372,500 0 0
PRINCIPAL FINANCIAL GROUP Common 74251V102 36,928,000 856,000 SH   SOLE   856,000 0 0
PROCTER & GAMBLE CO Common 742718109 53,374,000 699,100 SH   SOLE   699,100 0 0
PUBLIC SERVICE ENTERPRISE GRP INC Common 744573106 27,246,000 667,500 SH   SOLE   667,500 0 0
QUALCOMM INC Common 747525103 35,700,000 669,000 SH   SOLE   669,000 0 0
ROYAL DUTCH SHELL ADR Common 780259107 36,538,000 639,500 SH   SOLE   639,500 0 0
SCHLUMBERGER LTD Common 806857108 44,879,000 1,321,000 SH   SOLE   1,321,000 0 0
SMUCKERS J M Common 832696405 38,068,000 369,000 SH   SOLE   369,000 0 0
SONOCO PRODUCTS Common 835495102 24,460,000 587,200 SH   SOLE   587,200 0 0
SOUTH JERSEY INDUSTRIES INC Common 838518108 34,100,000 1,196,000 SH   SOLE   1,196,000 0 0
SOUTHERN COMPANY Common 842587107 48,150,000 1,058,500 SH   SOLE   1,058,500 0 0
SOUTHWEST GAS HOLDINGS INC Common 844895102 10,889,000 157,000 SH   SOLE   157,000 0 0
SPIRE INC Common 84857L101 19,441,000 340,000 SH   SOLE   340,000 0 0
SYSCO CORP Common 871829107 27,517,000 856,900 SH   SOLE   856,900 0 0
TEXAS INSTRUMENTS INC Common 882508104 31,171,000 399,000 SH   SOLE   399,000 0 0
3M CO Common 88579Y101 90,135,000 523,500 SH   SOLE   523,500 0 0
UGI CORP Common 902681105 11,298,000 352,000 SH   SOLE   352,000 0 0
UNITED PARCEL SERVICES INC Common 911312106 47,640,000 499,100 SH   SOLE   499,100 0 0
VALERO ENERGY CORP Common 91913Y100 34,626,000 478,000 SH   SOLE   478,000 0 0
VERIZON COMMUNICATIONS INC Common 92343V104 83,169,000 1,966,000 SH   SOLE   1,966,000 0 0
WEC ENERGY GROUP INC Common 92939U106 19,084,000 427,151 SH   SOLE   427,151 0 0
WALGREENS BOOTS ALLIANCE INC Common 931427108 73,039,000 1,306,000 SH   SOLE   1,306,000 0 0
WELLTOWER INC Common 95040Q104 6,024,000 105,000 SH   SOLE   105,000 0 0
WILEY JOHN & SONS Common 968223206 6,475,000 167,000 SH   SOLE   167,000 0 0
XCEL ENERGY CORP Common 98389B100 16,232,000 541,000 SH   SOLE   541,000 0 0
EATON CORP Common G29183103 19,723,000 378,000 SH   SOLE   378,000 0 0
INVESCO LTD Common G491BT108 25,190,000 1,635,500 SH   SOLE   1,635,500 0 0