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 5,697 89,287 SH   SOLE   89,287 0 0
AMERICAN SCIENCE & ENGR INC COM 029429107 30,781 743,861 SH   SOLE   743,861 0 0
APPLIED MATLS INC COM 038222105 830 44,440 SH   SOLE   44,440 0 0
BB&T CORP COM 054937107 807 21,332 SH   SOLE   21,332 0 0
BOK FINL CORP COM NEW 05561q201 51,061 854,003 SH   SOLE   854,003 0 0
CABOT MICROELECTRONICS CORP COM 12709p103 13,566 309,861 SH   SOLE   309,861 0 0
CAMERON INTERNATIONAL CORP COM 13342b105 42,763 676,635 SH   SOLE   676,635 0 0
CHUBB CORP COM 171232101 2,499 18,837 SH   SOLE   18,837 0 0
CNA FINL CORP COM 126117100 816 23,223 SH   SOLE   23,223 0 0
COMMERCE BANCSHARES INC COM 200525103 28,413 667,906 SH   SOLE   667,906 0 0
COMPASS MINERALS INTL INC COM 20451n101 746 9,905 SH   SOLE   9,905 0 0
CORRECTIONS CORP AMER NEW COM NEW 22025y407 36,512 1,378,318 SH   SOLE   1,378,318 0 0
CULLEN FROST BANKERS INC COM 229899109 682 11,368 SH   SOLE   11,368 0 0
DEERE & CO COM 244199105 33,980 445,519 SH   SOLE   445,519 0 0
DIAGEO P L C SPON ADR NEW 25243q205 31,587 289,599 SH   SOLE   289,599 0 0
DOVER CORP COM 260003108 1,568 25,571 SH   SOLE   25,571 0 0
EMERSON ELEC CO COM 291011104 49,161 1,027,832 SH   SOLE   1,027,832 0 0
EQT CORP COM 26884l109 1,495 28,673 SH   SOLE   28,673 0 0
EXELON CORP COM 30161n101 827 29,781 SH   SOLE   29,781 0 0
FLOWSERVE CORP COM 34354p105 2,289 54,408 SH   SOLE   54,408 0 0
FMC TECHNOLOGIES INC COM 30249u101 737 25,421 SH   SOLE   25,421 0 0
FRANKS INTL N V COM n33462107 110,276 6,607,281 SH   SOLE   6,607,281 0 0
FULLER H B CO COM 359694106 72,911 1,999,210 SH   SOLE   1,999,210 0 0
GENUINE PARTS CO COM 372460105 831 9,674 SH   SOLE   9,674 0 0
HALLIBURTON CO COM 406216101 757 22,239 SH   SOLE   22,239 0 0
HEARTLAND EXPRESS INC COM 422347104 794 46,634 SH   SOLE   46,634 0 0
HELMERICH & PAYNE INC COM 423452101 1,722 32,164 SH   SOLE   32,164 0 0
HUB GROUP INC CL A 443320106 10,710 325,033 SH   SOLE   325,033 0 0
HUBBELL INC COM 443510607 810 8,020 SH   SOLE   8,020 0 0
ITC HLDGS CORP COM 465685105 930 23,689 SH   SOLE   23,689 0 0
ITT CORP NEW COM NEW 450911201 737 20,286 SH   SOLE   20,286 0 0
JOHNSON & JOHNSON COM 478160104 27,409 266,833 SH   SOLE   266,833 0 0
LINDSAY CORP COM 535555106 33,738 465,998 SH   SOLE   465,998 0 0
M & T BK CORP COM 55261f104 1,672 13,797 SH   SOLE   13,797 0 0
MKS INSTRUMENT INC COM 55306n104 25,559 709,978 SH   SOLE   709,978 0 0
MSA SAFETY INC COM 553498106 9,118 209,752 SH   SOLE   209,752 0 0
NATIONAL FUEL GAS CO N J COM 636180101 119,098 2,785,929 SH   SOLE   2,785,929 0 0
NATIONAL OILWELL VARCO INC COM 637071101 1,463 43,689 SH   SOLE   43,689 0 0
NATIONAL WESTN LIFE GROUP IN CL A 638517102 15,262 60,576 SH   SOLE   60,576 0 0
NORDSTROM INC COM 655664100 789 15,833 SH   SOLE   15,833 0 0
NORFOLK SOUTHERN CORP COM 655844108 851 10,064 SH   SOLE   10,064 0 0
NORTHERN TR CORP COM 665859104 1,597 22,149 SH   SOLE   22,149 0 0
NORTHWEST NAT GAS CO COM 667655104 820 16,207 SH   SOLE   16,207 0 0
PATTERSON COMPANIES INC COM 703395103 16,174 357,744 SH   SOLE   357,744 0 0
PRAXAIR INC COM 74005p104 14,079 137,490 SH   SOLE   137,490 0 0
RAYONIER INC COM 754907103 774 34,879 SH   SOLE   34,879 0 0
SANDERSON FARMS INC COM 800013104 1,787 23,056 SH   SOLE   23,056 0 0
SCHLUMBERGER LTD COM 806857108 11,093 159,042 SH   SOLE   159,042 0 0
SMITH & NEPHEW PLC SPDN ADR NEW 83175m205 871 24,470 SH   SOLE   24,470 0 0
SYSCO CORP COM 871829107 3,204 78,145 SH   SOLE   78,145 0 0
UNITED PARCEL SERVICE INC CL B 911312106 34,319 356,633 SH   SOLE   356,633 0 0
WAL-MART STORES INC COM 931142103 31,558 514,813 SH   SOLE   514,813 0 0
WATERS CORP COM 941848103 902 6,704 SH   SOLE   6,704 0 0
WOODWARD INC COM 980745103 1,691 34,049 SH   SOLE   34,049 0 0
XYLEM INC COM 98419m100 9,618 263,501 SH   SOLE   263,501 0 0
ZIMMER BIOMET HLDGS INC COM 98956p102 796 7,758 SH   SOLE   7,758 0 0