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
AGL RES INC COM 001204106 1,328 28,526 SH   SOLE   28,526 0 0
ALTERA CORP COM 021441100 1,521 29,711 SH   SOLE   29,711 0 0
AMERICAN SCIENCE & ENGR INC COM 029429107 32,078 732,206 SH   SOLE   732,206 0 0
APTARGROUP INC COM 038336103 1,529 23,982 SH   SOLE   23,982 0 0
BB&T CORP COM 054937107 789 19,584 SH   SOLE   19,584 0 0
BECTON DICKINSON & CO COM 075887109 786 5,549 SH   SOLE   5,549 0 0
BOK FINL CORP COM NEW 05561q201 63,670 915,067 SH   SOLE   915,067 0 0
CABOT MICROELECTRONICS CORP COM 12709p103 2,357 50,033 SH   SOLE   50,033 0 0
CAMERON INTERNATIONAL CORP COM 13342b105 37,797 721,729 SH   SOLE   721,729 0 0
CHUBB CORP COM 171232101 32,055 336,921 SH   SOLE   336,921 0 0
CNA FINL CORP COM 126117100 701 18,335 SH   SOLE   18,335 0 0
COMMERCE BANCSHARES INC COM 200525103 33,514 716,579 SH   SOLE   716,579 0 0
COMPASS MINERALS INTL INC COM 20451n101 732 8,911 SH   SOLE   8,911 0 0
CORRECTIONS CORP AMER NEW COM NEW 22025y407 24,986 755,306 SH   SOLE   755,306 0 0
CULLEN FROST BANKERS INC COM 229899109 784 9,976 SH   SOLE   9,976 0 0
DEERE & CO COM 244199105 1,661 17,120 SH   SOLE   17,120 0 0
DIAGEO P L C SPON ADR NEW 25243q205 37,592 323,953 SH   SOLE   323,953 0 0
DOVER CORP COM 260003108 718 10,225 SH   SOLE   10,225 0 0
EMERSON ELEC CO COM 291011104 54,114 976,265 SH   SOLE   976,265 0 0
EQT CORP COM 26884l109 705 8,663 SH   SOLE   8,663 0 0
EXXON MOBIL CORP COM 30231g102 25,949 311,889 SH   SOLE   311,889 0 0
FLOWSERVE CORP COM 34354p105 1,458 27,687 SH   SOLE   27,687 0 0
FLUOR CORP NEW COM 343412102 677 12,779 SH   SOLE   12,779 0 0
FRANKS INTL N V COM n33462107 96,195 5,105,881 SH   SOLE   5,105,881 0 0
FULLER H B CO COM 359694106 70,662 1,739,578 SH   SOLE   1,739,578 0 0
HUB GROUP INC CL A 443320106 1,449 35,920 SH   SOLE   35,920 0 0
IDACORP INC COM 451107106 810 14,428 SH   SOLE   14,428 0 0
IMPERIAL OIL LTD COM NEW 453038408 23,491 608,259 SH   SOLE   608,259 0 0
ITC HLDGS CORP COM 465685105 25,241 784,365 SH   SOLE   784,365 0 0
ITT CORP NEW COM NEW 450911201 752 17,966 SH   SOLE   17,966 0 0
JOHNSON & JOHNSON COM 478160104 40,527 415,834 SH   SOLE   415,834 0 0
KANSAS CITY LIFE INS CO COM 484836101 766 16,752 SH   SOLE   16,752 0 0
KELLOGG CO COM 487836108 15,448 246,375 SH   SOLE   246,375 0 0
LINDSAY CORP COM 535555106 1,163 13,230 SH   SOLE   13,230 0 0
LPL FINL HLDGS INC COM 50212v100 23,387 503,061 SH   SOLE   503,061 0 0
M & T BK CORP COM 55261f104 1,547 12,383 SH   SOLE   12,383 0 0
MKS INSTRUMENT INC COM 55306n104 25,785 679,627 SH   SOLE   679,627 0 0
MSA SAFETY INC COM 553498106 1,558 32,120 SH   SOLE   32,120 0 0
NATIONAL FUEL GAS CO N J COM 636180101 101,621 1,725,613 SH   SOLE   1,725,613 0 0
NATIONAL WESTN LIFE INS CO CL A 638522102 13,297 55,523 SH   SOLE   55,523 0 0
NORFOLK SOUTHERN CORP COM 655844108 638 7,302 SH   SOLE   7,302 0 0
NORTHERN TR CORP COM 665859104 775 10,135 SH   SOLE   10,135 0 0
NORTHWEST NAT GAS CO COM 667655104 1,521 36,048 SH   SOLE   36,048 0 0
PATTERSON COMPANIES INC COM 703395103 21,431 440,510 SH   SOLE   440,510 0 0
PORTLAND GEN ELEC CO COM NEW 736508847 3,079 92,863 SH   SOLE   92,863 0 0
PRAXAIR INC COM 74005p104 25,317 211,765 SH   SOLE   211,765 0 0
PROASSURANCE CORP COM 74267c106 774 16,760 SH   SOLE   16,760 0 0
RAYONIER INC COM 754907103 2,326 91,029 SH   SOLE   91,029 0 0
SCHLUMBERGER LTD COM 806857108 45,813 531,531 SH   SOLE   531,531 0 0
SIMPSON MANUFACTURING CO INC COM 829073105 1,544 45,419 SH   SOLE   45,419 0 0
SMITH & NEPHEW PLC SPDN ADR NEW 83175m205 720 21,213 SH   SOLE   21,213 0 0
SOUTHERN CO COM 842587107 1,432 34,184 SH   SOLE   34,184 0 0
SYSCO CORP COM 871829107 35,496 983,257 SH   SOLE   983,257 0 0
UNITED PARCEL SERVICE INC CL B 911312106 40,097 413,756 SH   SOLE   413,756 0 0
WOODWARD INC COM 980745103 1,722 31,323 SH   SOLE   31,323 0 0
XILINX INC COM 983919101 2,259 51,161 SH   SOLE   51,161 0 0
XYLEM INC COM 98419m100 42,453 1,145,218 SH   SOLE   1,145,218 0 0