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 130,754 3,667,700 SH   SOLE   3,667,700 0 0
ABBVIE INC Common 00287Y109 27,941 295,200 SH   SOLE   295,200 0 0
ALLETE INC Common 018522300 14,963 207,100 SH   SOLE   207,100 0 0
ALLIANT ENERGY CORP Common 018802108 19,368 474,000 SH   SOLE   474,000 0 0
ALTRIA GROUP INC Common 02209S103 42,736 685,750 SH   SOLE   685,750 0 0
AMEREN CORP Common 023608102 21,714 383,442 SH   SOLE   383,442 0 0
AMERICAN ELECTRIC POWER CO INC Common 025537101 17,751 258,800 SH   SOLE   258,800 0 0
ARCHER DANIELS MIDLAND CO Common 039483102 35,281 813,500 SH   SOLE   813,500 0 0
ASTRAZENECA PLC Common 046353108 43,817 1,253,000 SH   SOLE   1,253,000 0 0
AVISTA CORP Common 05379B107 13,192 257,400 SH   SOLE   257,400 0 0
BP PLC ADR Common 055622104 80,075 1,975,200 SH   SOLE   1,975,200 0 0
BLACK HILLS CORP Common 092113109 13,304 245,000 SH   SOLE   245,000 0 0
BRISTOL MYERS SQUIBB CO Common 110122108 13,283 210,000 SH   SOLE   210,000 0 0
CENTERPOINT ENERGY INC Common 15189T107 30,935 1,129,000 SH   SOLE   1,129,000 0 0
CHEVRON CORP Common 166764100 95,839 840,400 SH   SOLE   840,400 0 0
CINCINNATI FINANCIAL CORP Common 172062101 43,049 579,700 SH   SOLE   579,700 0 0
CISCO SYSTEMS Common 17275R102 72,982 1,701,600 SH   SOLE   1,701,600 0 0
COCA COLA CO Common 191216100 69,306 1,595,800 SH   SOLE   1,595,800 0 0
CONSOLIDATED EDISON INC Common 209115104 42,500 545,286 SH   SOLE   545,286 0 0
CUMMINS INC Common 231021106 31,364 193,500 SH   SOLE   193,500 0 0
DOMINION RESOURCES INC Common 25746U109 25,023 371,100 SH   SOLE   371,100 0 0
DONEGAL GROUP INC Common 257701201 7,538 477,100 SH   SOLE   477,100 0 0
DUKE ENERGY CORP Common 26441C204 44,788 578,131 SH   SOLE   578,131 0 0
EATON VANCE CORP Common 278265103 17,870 321,000 SH   SOLE   321,000 0 0
EMERSON ELECTRIC CO Common 291011104 53,786 787,500 SH   SOLE   787,500 0 0
ENTERGY CORP Common 29364G103 25,249 320,500 SH   SOLE   320,500 0 0
ERIE INDEMNITY CO CL A Common 29530P102 26,187 222,600 SH   SOLE   222,600 0 0
EXXON MOBIL CORP Common 30231G102 76,177 1,021,000 SH   SOLE   1,021,000 0 0
FLOWERS FOODS INC Common 343498101 26,451 1,210,000 SH   SOLE   1,210,000 0 0
GALLAGHER ARTHUR J Common 363576109 58,366 849,200 SH   SOLE   849,200 0 0
GENERAL MILLS INC Common 370334104 35,809 794,700 SH   SOLE   794,700 0 0
GENUINE PARTS CO Common 372460105 30,995 345,000 SH   SOLE   345,000 0 0
GLAXOSMITHKLINE ADR Common 37733W105 60,109 1,538,500 SH   SOLE   1,538,500 0 0
GRAINGER WW INC Common 384802104 42,341 150,000 SH   SOLE   150,000 0 0
GREAT PLAINS ENERGY INC Common 391164100 19,074 600,000 SH   SOLE   600,000 0 0
HELMERICH & PAYNE INC Common 423452101 43,497 653,500 SH   SOLE   653,500 0 0
HOLLYFRONTIER CORP Common 436106108 19,642 402,000 SH   SOLE   402,000 0 0
INTEL CORP Common 458140100 63,069 1,211,000 SH   SOLE   1,211,000 0 0
IBM CORP Common 459200101 74,567 486,000 SH   SOLE   486,000 0 0
JOHNSON & JOHNSON Common 478160104 36,113 281,800 SH   SOLE   281,800 0 0
KELLOGG CO Common 487836108 36,146 556,000 SH   SOLE   556,000 0 0
KIMBERLY CLARK CORP Common 494368103 52,719 478,700 SH   SOLE   478,700 0 0
LEGGETT & PLATT INC Common 524660107 37,018 834,500 SH   SOLE   834,500 0 0
LILLY ELI & CO Common 532457108 13,656 176,500 SH   SOLE   176,500 0 0
MDU RESOURCES GROUP INC Common 552690109 36,608 1,300,000 SH   SOLE   1,300,000 0 0
MARATHON PETROLEUM GROUP Common 56585A102 20,763 284,000 SH   SOLE   284,000 0 0
MCDONALDS CORP Common 580135101 40,409 258,400 SH   SOLE   258,400 0 0
MERCK & CO INC Common 58933Y105 46,218 848,500 SH   SOLE   848,500 0 0
METLIFE INC Common 59156R108 21,403 466,400 SH   SOLE   466,400 0 0
NEWELL BRANDS INC Common 651229106 15,079 591,800 SH   SOLE   591,800 0 0
NORTHWEST NATURAL GAS CO Common 667655104 22,138 384,000 SH   SOLE   384,000 0 0
NUCOR CORP Common 670346105 53,729 879,500 SH   SOLE   879,500 0 0
OGE ENERGY CORP Common 670837103 20,874 637,000 SH   SOLE   637,000 0 0
OCCIDENTAL PETROLEUM CORP Common 674599105 22,671 349,000 SH   SOLE   349,000 0 0
PPL CORP Common 69351T106 33,609 1,188,000 SH   SOLE   1,188,000 0 0
PAYCHEX INC Common 704326107 20,128 326,800 SH   SOLE   326,800 0 0
PEPSICO INC Common 713448108 34,841 319,200 SH   SOLE   319,200 0 0
PFIZER INC Common 717081103 62,995 1,775,000 SH   SOLE   1,775,000 0 0
PHILIP MORRIS INTERNATIONAL INC Common 718172109 58,964 593,200 SH   SOLE   593,200 0 0
PHILLIPS 66 Common 718546104 37,601 392,000 SH   SOLE   392,000 0 0
T ROWE PRICE GROUP INC Common 74144T108 31,884 295,300 SH   SOLE   295,300 0 0
PRINCIPAL FINANCIAL GROUP Common 74251V102 27,531 452,000 SH   SOLE   452,000 0 0
PROCTER & GAMBLE CO Common 742718109 45,752 577,100 SH   SOLE   577,100 0 0
PUBLIC SERVICE ENTERPRISE GRP INC Common 744573106 32,430 645,500 SH   SOLE   645,500 0 0
QUALCOMM INC Common 747525103 43,718 789,000 SH   SOLE   789,000 0 0
ROYAL DUTCH SHELL ADR Common 780259107 86,028 1,312,800 SH   SOLE   1,312,800 0 0
SCANA CORP Common 80589M102 29,695 790,800 SH   SOLE   790,800 0 0
SCHLUMBERGER LTD Common 806857108 24,603 379,800 SH   SOLE   379,800 0 0
SONOCO PRODUCTS Common 835495102 17,062 351,800 SH   SOLE   351,800 0 0
SOUTH JERSEY INDUSTRIES INC Common 838518108 19,628 697,000 SH   SOLE   697,000 0 0
SOUTHERN COMPANY Common 842587107 39,948 894,500 SH   SOLE   894,500 0 0
SPIRE INC Common 84857L101 19,376 268,000 SH   SOLE   268,000 0 0
SYSCO CORP Common 871829107 37,619 627,400 SH   SOLE   627,400 0 0
TEXAS INSTRUMENTS INC Common 882508104 18,700 180,000 SH   SOLE   180,000 0 0
UNITED PARCEL SERVICES INC Common 911312106 25,956 248,000 SH   SOLE   248,000 0 0
VF CORP Common 918204108 13,230 178,500 SH   SOLE   178,500 0 0
VALERO ENERGY CORP Common 91913Y100 23,007 248,000 SH   SOLE   248,000 0 0
VECTREN CORP Common 92240G101 11,444 179,044 SH   SOLE   179,044 0 0
VERIZON COMMUNICATIONS INC Common 92343V104 127,555 2,667,400 SH   SOLE   2,667,400 0 0
WGL HOLDINGS INC Common 92924F106 15,132 180,900 SH   SOLE   180,900 0 0
WEC ENERGY GROUP INC Common 92939U106 25,215 402,151 SH   SOLE   402,151 0 0
WESTAR ENERGY INC Common 95709T100 17,355 330,000 SH   SOLE   330,000 0 0
XCEL ENERGY CORP Common 98389B100 24,605 541,000 SH   SOLE   541,000 0 0
EATON CORP Common G29183103 30,206 378,000 SH   SOLE   378,000 0 0
VECTREN CORP Common 92240G101 10,494 179,044 SH   SOLE   179,044 0 0
VERIZON COMMUNICATIONS INC Common 92343V104 91,406 1,875,000 SH   SOLE   1,875,000 0 0
WGL HOLDINGS INC Common 92924F106 18,041 218,600 SH   SOLE   218,600 0 0
WEC ENERGY GROUP INC Common 92939U106 18,986 313,151 SH   SOLE   313,151 0 0
WASTE MANAGEMENT INC Common 94106L109 25,573 350,700 SH   SOLE   350,700 0 0
WESTAR ENERGY INC Common 95709T100 17,909 330,000 SH   SOLE   330,000 0 0
XCEL ENERGY CORP Common 98389B100 24,047 541,000 SH   SOLE   541,000 0 0
EATON CORP Common G29183103 28,029 378,000 SH   SOLE   378,000 0 0