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 121,719 3,790,700 SH   SOLE   3,790,700 0 0
ABBVIE INC Common 00287Y109 27,350 295,200 SH   SOLE   295,200 0 0
ALLETE INC Common 018522300 16,032 207,100 SH   SOLE   207,100 0 0
ALLIANT ENERGY CORP Common 018802108 20,060 474,000 SH   SOLE   474,000 0 0
ALTRIA GROUP INC Common 02209S103 20,089 353,750 SH   SOLE   353,750 0 0
AMEREN CORP Common 023608102 23,332 383,442 SH   SOLE   383,442 0 0
AMERICAN ELECTRIC POWER CO INC Common 025537101 21,661 312,800 SH   SOLE   312,800 0 0
ARCHER DANIELS MIDLAND CO Common 039483102 35,816 781,500 SH   SOLE   781,500 0 0
ASTRAZENECA PLC Common 046353108 25,349 722,000 SH   SOLE   722,000 0 0
AVISTA CORP Common 05379B107 13,555 257,400 SH   SOLE   257,400 0 0
BP PLC ADR Common 055622104 82,266 1,801,700 SH   SOLE   1,801,700 0 0
BLACK HILLS CORP Common 092113109 14,996 245,000 SH   SOLE   245,000 0 0
BRISTOL MYERS SQUIBB CO Common 110122108 20,365 368,000 SH   SOLE   368,000 0 0
CAMPBELL SOUP CO Common 134429109 17,635 435,000 SH   SOLE   435,000 0 0
CARDINAL HEALTH INC Common 14149Y108 21,241 435,000 SH   SOLE   435,000 0 0
CENTERPOINT ENERGY INC Common 15189T107 33,501 1,209,000 SH   SOLE   1,209,000 0 0
CHEVRON CORP Common 166764100 110,424 873,400 SH   SOLE   873,400 0 0
CINCINNATI FINANCIAL CORP Common 172062101 38,759 579,700 SH   SOLE   579,700 0 0
CISCO SYSTEMS Common 17275R102 73,220 1,701,600 SH   SOLE   1,701,600 0 0
CLOROX COMPANY Common 189054109 12,173 90,000 SH   SOLE   90,000 0 0
COCA COLA CO Common 191216100 72,009 1,641,800 SH   SOLE   1,641,800 0 0
CONSOLIDATED EDISON INC Common 209115104 42,521 545,286 SH   SOLE   545,286 0 0
CUMMINS INC Common 231021106 25,736 193,500 SH   SOLE   193,500 0 0
DOMINION RESOURCES INC Common 25746U109 31,983 469,100 SH   SOLE   469,100 0 0
DONEGAL GROUP INC Common 257701201 8,385 616,100 SH   SOLE   616,100 0 0
DUKE ENERGY CORP Common 26441C204 53,310 674,131 SH   SOLE   674,131 0 0
EATON VANCE CORP Common 278265103 16,753 321,000 SH   SOLE   321,000 0 0
EMERSON ELECTRIC CO Common 291011104 54,448 787,500 SH   SOLE   787,500 0 0
ENTERGY CORP Common 29364G103 29,610 366,500 SH   SOLE   366,500 0 0
ERIE INDEMNITY CO CL A Common 29530P102 26,102 222,600 SH   SOLE   222,600 0 0
EVERGY INC Common 30034W106 38,679 688,860 SH   SOLE   688,860 0 0
EXXON MOBIL CORP Common 30231G102 92,989 1,124,000 SH   SOLE   1,124,000 0 0
FLOWERS FOODS INC Common 343498101 25,204 1,210,000 SH   SOLE   1,210,000 0 0
GALLAGHER ARTHUR J Common 363576109 51,747 792,700 SH   SOLE   792,700 0 0
GENERAL MILLS INC Common 370334104 41,281 932,700 SH   SOLE   932,700 0 0
GENUINE PARTS CO Common 372460105 33,228 362,000 SH   SOLE   362,000 0 0
GILEAD SCIENCES INC Common 375558103 16,081 227,000 SH   SOLE   227,000 0 0
GLAXOSMITHKLINE ADR Common 37733W105 33,095 821,000 SH   SOLE   821,000 0 0
GRAINGER WW INC Common 384802104 46,260 150,000 SH   SOLE   150,000 0 0
HARLEY-DAVIDSON INC Common 412822108 11,593 275,500 SH   SOLE   275,500 0 0
HELMERICH & PAYNE INC Common 423452101 43,134 676,500 SH   SOLE   676,500 0 0
INTEL CORP Common 458140100 53,041 1,067,000 SH   SOLE   1,067,000 0 0
IBM CORP Common 459200101 69,850 500,000 SH   SOLE   500,000 0 0
JOHNSON & JOHNSON Common 478160104 34,194 281,800 SH   SOLE   281,800 0 0
KELLOGG CO Common 487836108 41,084 588,000 SH   SOLE   588,000 0 0
KIMBERLY CLARK CORP Common 494368103 56,220 533,700 SH   SOLE   533,700 0 0
KRAFT HEINZ CO Common 500754106 22,615 360,000 SH   SOLE   360,000 0 0
LEGGETT & PLATT INC Common 524660107 41,314 925,500 SH   SOLE   925,500 0 0
LILLY ELI & CO Common 532457108 15,061 176,500 SH   SOLE   176,500 0 0
MDU RESOURCES GROUP INC Common 552690109 37,284 1,300,000 SH   SOLE   1,300,000 0 0
MARATHON PETROLEUM GROUP Common 56585A102 19,925 284,000 SH   SOLE   284,000 0 0
MCDONALDS CORP Common 580135101 40,489 258,400 SH   SOLE   258,400 0 0
MERCK & CO INC Common 58933Y105 41,064 676,500 SH   SOLE   676,500 0 0
METLIFE INC Common 59156R108 25,087 575,400 SH   SOLE   575,400 0 0
NEWELL BRANDS INC Common 651229106 15,263 591,800 SH   SOLE   591,800 0 0
NORTHWEST NATURAL GAS CO Common 667655104 24,499 384,000 SH   SOLE   384,000 0 0
NUCOR CORP Common 670346105 41,406 662,500 SH   SOLE   662,500 0 0
OGE ENERGY CORP Common 670837103 22,429 637,000 SH   SOLE   637,000 0 0
OCCIDENTAL PETROLEUM CORP Common 674599105 29,204 349,000 SH   SOLE   349,000 0 0
PPL CORP Common 69351T106 42,854 1,501,000 SH   SOLE   1,501,000 0 0
PAYCHEX INC Common 704326107 22,337 326,800 SH   SOLE   326,800 0 0
PEPSICO INC Common 713448108 48,578 446,200 SH   SOLE   446,200 0 0
PFIZER INC Common 717081103 48,724 1,343,000 SH   SOLE   1,343,000 0 0
PHILIP MORRIS INTERNATIONAL INC Common 718172109 54,516 675,200 SH   SOLE   675,200 0 0
PHILLIPS 66 Common 718546104 19,654 175,000 SH   SOLE   175,000 0 0
T ROWE PRICE GROUP INC Common 74144T108 27,548 237,300 SH   SOLE   237,300 0 0
PRINCIPAL FINANCIAL GROUP Common 74251V102 25,575 483,000 SH   SOLE   483,000 0 0
PROCTER & GAMBLE CO Common 742718109 56,757 727,100 SH   SOLE   727,100 0 0
PUBLIC SERVICE ENTERPRISE GRP INC Common 744573106 35,976 664,500 SH   SOLE   664,500 0 0
QUALCOMM INC Common 747525103 44,279 789,000 SH   SOLE   789,000 0 0
ROYAL DUTCH SHELL ADR Common 780259107 84,114 1,157,800 SH   SOLE   1,157,800 0 0
SCANA CORP Common 80589M102 30,462 790,800 SH   SOLE   790,800 0 0
SCHLUMBERGER LTD Common 806857108 34,507 514,800 SH   SOLE   514,800 0 0
SONOCO PRODUCTS Common 835495102 18,470 351,800 SH   SOLE   351,800 0 0
SOUTH JERSEY INDUSTRIES INC Common 838518108 23,329 697,000 SH   SOLE   697,000 0 0
SOUTHERN COMPANY Common 842587107 51,242 1,106,500 SH   SOLE   1,106,500 0 0
SPIRE INC Common 84857L101 18,934 268,000 SH   SOLE   268,000 0 0
SYSCO CORP Common 871829107 39,936 584,800 SH   SOLE   584,800 0 0
TEXAS INSTRUMENTS INC Common 882508104 19,845 180,000 SH   SOLE   180,000 0 0
UNITED PARCEL SERVICES INC Common 911312106 29,107 274,000 SH   SOLE   274,000 0 0
VF CORP Common 918204108 14,551 178,500 SH   SOLE   178,500 0 0
VALERO ENERGY CORP Common 91913Y100 27,486 248,000 SH   SOLE   248,000 0 0
VECTREN CORP Common 92240G101 12,793 179,044 SH   SOLE   179,044 0 0
VERIZON COMMUNICATIONS INC Common 92343V104 134,197 2,667,400 SH   SOLE   2,667,400 0 0
WGL HOLDINGS INC Common 92924F106 16,055 180,900 SH   SOLE   180,900 0 0
WEC ENERGY GROUP INC Common 92939U106 27,615 427,151 SH   SOLE   427,151 0 0
WELLTOWER INC Common 95040Q104 6,582 105,000 SH   SOLE   105,000 0 0
XCEL ENERGY CORP Common 98389B100 24,713 541,000 SH   SOLE   541,000 0 0
EATON CORP Common G29183103 28,252 378,000 SH   SOLE   378,000 0 0