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
1st Finl Banksh COM 32020R109 1,149 26,037 SH   SOLE   26,037 0 0
3M Company COM 88579Y101 8,638 58,017 SH   SOLE   56,380 0 1,637
Abbott Laboratories COM 002824100 11,305 95,518 SH   SOLE   91,768 0 3,750
AbbVie Inc COM 00287Y109 5,543 34,192 SH   SOLE   34,128 0 64
Accenture PLC CL A COM G1151C101 10,081 29,895 SH   SOLE   27,640 0 2,255
Adobe Systems Inc COM 00724F101 239 524 SH   SOLE   524 0 0
Align Technology Inc COM 016255101 413 947 SH   SOLE   947 0 0
Allegiance Bancshare COM 01748H107 4,405 98,593 SH   SOLE   98,593 0 0
Alphabet Inc Class A COM 02079K305 2,197 790 SH   SOLE   735 0 55
Alphabet Inc Class C COM 02079K107 32,374 11,591 SH   SOLE   11,120 0 471
Altria Group Inc. COM 02209S103 481 9,199 SH   SOLE   9,199 0 0
Amazon Com Inc COM 023135106 20,541 6,301 SH   SOLE   6,157 0 144
American Express Company COM 025816109 3,322 17,767 SH   SOLE   17,551 0 216
Apple Computer Inc COM 037833100 38,057 217,953 SH   SOLE   206,249 0 11,704
Applied Materials Inc COM 038222105 12,955 98,294 SH   SOLE   94,161 0 4,133
AT&T Inc COM 00206R102 11,913 504,129 SH   SOLE   485,124 0 19,005
Bank Of Nova Scotia COM 064149107 2,747 38,299 SH   SOLE   35,130 0 3,169
Berkshire Hathaway Cl B COM 084670702 18,648 52,842 SH   SOLE   51,017 0 1,825
Bhp Billiton Ltd Adr COM 088606108 11,310 146,410 SH   SOLE   140,424 0 5,986
Booking Holdings Inc COM 09857L108 3,835 1,633 SH   SOLE   1,571 0 62
Bristol-Myers Squibb Co COM 110122108 6,038 82,685 SH   SOLE   81,585 0 1,100
Brookfield Asset Mgmt COM 112585104 16,924 299,170 SH   SOLE   286,395 0 12,776
Brookfield Infra Ptnrs COM G16252101 1,946 29,375 SH   SOLE   29,375 0 0
Brookfield Infrastruct FClass A COM 11275Q107 1,152 15,269 SH   SOLE   14,369 0 900
Canadian Natl Ry Co COM 136375102 12,744 95,007 SH   SOLE   91,458 0 3,549
Cardinal Health Inc COM 14149Y108 2,089 36,843 SH   SOLE   35,493 0 1,350
Caterpillar Inc COM 149123101 9,765 43,826 SH   SOLE   42,086 0 1,740
CBTX INC COM 12481V104 1,692 54,587 SH   SOLE   54,587 0 0
Chevron Corp COM 166764100 17,771 109,137 SH   SOLE   105,565 0 3,572
Chubb Ltd F COM H1467J104 16,921 79,106 SH   SOLE   75,981 0 3,125
Cintas Corp COM 172908105 5,284 12,421 SH   SOLE   11,176 0 1,245
Cisco Systems Inc COM 17275R102 11,932 213,987 SH   SOLE   203,981 0 10,006
Coca Cola Company COM 191216100 3,377 54,461 SH   SOLE   54,028 0 433
Comstock Res Inc COM 205768302 144 11,000 SH   SOLE   11,000 0 0
Conocophillips COM 20825C104 989 9,887 SH   SOLE   9,887 0 0
Constellation Brand COM 21036P108 234 1,015 SH   SOLE   1,015 0 0
Continental Resource COM 212015101 248 4,050 SH   SOLE   4,050 0 0
Corteva Inc COM 22052L104 6,013 104,619 SH   SOLE   100,944 0 3,675
Costco Whsl Corp New COM 22160K105 335 582 SH   SOLE   582 0 0
Cullen Frost Bankers COM 229899109 2,478 17,904 SH   SOLE   16,504 0 1,400
CVS Health Corporation COM 126650100 9,177 90,672 SH   SOLE   87,863 0 2,809
D R Horton Co COM 23331A109 4,751 63,768 SH   SOLE   62,328 0 1,440
Danaher Corp Del COM 235851102 6,827 23,273 SH   SOLE   22,833 0 440
Diageo Plc New Adr COM 25243Q205 6,630 32,637 SH   SOLE   30,882 0 1,755
Diamondback Energy COM 25278X109 461 3,366 SH   SOLE   3,166 0 200
Discover Financial Svcs COM 254709108 3,330 30,225 SH   SOLE   30,000 0 225
Discovery Inc COM 25470F302 2,543 101,830 SH   SOLE   101,830 0 0
Disney Walt Hldg Co COM 254687106 12,009 87,554 SH   SOLE   83,583 0 3,971
Dollar Tree Inc COM 256746108 7,673 47,910 SH   SOLE   45,290 0 2,620
Dominion Res Inc Va New COM 25746U109 8,371 98,514 SH   SOLE   95,382 0 3,132
Dow Chemical Company COM 260543103 6,970 109,383 SH   SOLE   104,147 0 5,237
E O G Resources Inc COM 26875P101 8,254 69,227 SH   SOLE   66,171 0 3,055
Eagle Materials Inc COM 26969P108 2,100 16,362 SH   SOLE   16,275 0 87
Eaton Corporation COM G29183103 1,809 11,920 SH   SOLE   11,420 0 500
Enbridge Inc COM 29250N105 11,109 241,035 SH   SOLE   234,860 0 6,175
Entegris Inc COM 29362U104 2,292 17,464 SH   SOLE   16,664 0 800
Enterprise Prd Prtnrs Lp COM 293792107 558 21,605 SH   SOLE   21,605 0 0
EQT Corporation COM 26884L109 5,918 171,993 SH   SOLE   162,393 0 9,600
Exxon Mobil Corporation COM 30231G102 11,966 144,881 SH   SOLE   138,610 0 6,271
Facebook Inc Class A COM 30303M102 18,417 82,825 SH   SOLE   79,920 0 2,905
FedEx Corporation COM 31428X106 16,752 72,399 SH   SOLE   69,899 0 2,499
Firstenergy Corp COM 337932107 1,497 32,650 SH   SOLE   32,650 0 0
Fiserv Inc COM 337738108 1,173 11,565 SH   SOLE   10,265 0 1,300
Fortinet Inc COM 34959E109 7,015 20,528 SH   SOLE   20,132 0 396
FRIEDMAN INDS INC COM COM 358435105 587 66,672 SH   SOLE   66,672 0 0
General Dynamics Corp COM 369550108 1,821 7,552 SH   SOLE   7,552 0 0
General Mills Inc COM 370334104 1,347 19,885 SH   SOLE   19,885 0 0
Gilead Sciences Inc COM 375558103 219 3,682 SH   SOLE   3,556 0 126
Global Payments Inc COM 37940X102 6,382 46,641 SH   SOLE   45,291 0 1,350
Hasbro Inc COM 418056107 3,272 39,937 SH   SOLE   38,885 0 1,052
Home Depot Inc COM 437076102 1,470 4,909 SH   SOLE   4,454 0 456
Independent Bk Group Inc COM 45384B106 397 5,584 SH   SOLE   5,584 0 0
Intel Corp COM 458140100 5,289 106,725 SH   SOLE   104,625 0 2,100
Intl Bancshares Corp COM 459044103 295 6,985 SH   SOLE   6,985 0 0
Intl Business Machines COM 459200101 378 2,906 SH   SOLE   2,906 0 0
Intuitive Surgical New COM 46120E602 306 1,015 SH   SOLE   1,015 0 0
Iqvia Holdings Inc COM 46266C105 5,132 22,197 SH   SOLE   20,682 0 1,515
Ishares Ultra Short Term ETF 46434V878 4,617 92,057 SH   SOLE   90,557 0 1,500
Johnson & Johnson COM 478160104 21,133 119,240 SH   SOLE   114,326 0 4,914
JPMorgan Chase & Co. COM 46625H100 17,584 128,994 SH   SOLE   123,547 0 5,447
Kellogg Company COM 487836108 1,410 21,868 SH   SOLE   21,868 0 0
Kinder Morgan Inc COM 49456B101 10,214 540,125 SH   SOLE   516,169 0 23,957
Lazard Ltd COM G54050102 828 24,004 SH   SOLE   24,004 0 0
Lilly Eli & Company COM 532457108 236 825 SH   SOLE   825 0 0
Lockheed Martin Corp COM 539830109 1,722 3,902 SH   SOLE   3,896 0 5
Lowes Companies Inc COM 548661107 17,670 87,394 SH   SOLE   83,999 0 3,394
Main Street Capital Corp COM 56035L104 661 15,507 SH   SOLE   15,507 0 0
Mastercard Inc COM 57636Q104 276 771 SH   SOLE   771 0 0
McDonalds Corp COM 580135101 16,230 65,636 SH   SOLE   62,594 0 3,042
Merck & Co Inc COM 58933Y105 2,406 29,320 SH   SOLE   29,122 0 198
Microsoft Corp COM 594918104 35,702 115,799 SH   SOLE   110,508 0 5,290
NextEra Energy, Inc COM 65339F101 15,364 181,377 SH   SOLE   173,360 0 8,017
Nike Inc Class B COM 654106103 10,548 78,392 SH   SOLE   74,055 0 4,337
Northern Trust Corp COM 665859104 2,936 25,211 SH   SOLE   22,803 0 2,408
Nvidia Corp COM 67066G104 401 1,470 SH   SOLE   1,470 0 0
Oneok Inc New COM 682680103 202 2,855 SH   SOLE   2,855 0 0
Ovintiv Inc COM 69047Q102 211 3,909 SH   SOLE   3,909 0 0
Paramount Global COM 92556H206 2,650 70,075 SH   SOLE   70,075 0 0
Paychex Inc COM 704326107 10,867 79,628 SH   SOLE   77,278 0 2,350
Pepsico Incorporated COM 713448108 14,554 86,950 SH   SOLE   83,718 0 3,232
Pfizer Incorporated COM 717081103 19,822 382,879 SH   SOLE   365,056 0 17,823
Philip Morris Intl Inc COM 718172109 380 4,043 SH   SOLE   4,043 0 0
Phillips 66 COM 718546104 328 3,800 SH   SOLE   3,800 0 0
Polaris Industries Inc COM 731068102 2,219 21,073 SH   SOLE   20,158 0 915
Procter & Gamble Co COM 742718109 14,701 96,210 SH   SOLE   93,548 0 2,662
Prologis Inc COM 74340W103 9,080 56,233 SH   SOLE   54,094 0 2,139
Prosperity Bancshares Inc COM 743606105 369 5,312 SH   SOLE   5,312 0 0
Raytheon Technologies Co COM 75513E101 1,434 14,474 SH   SOLE   14,474 0 0
Regions Financial Cp New COM 7591EP100 682 30,650 SH   SOLE   30,650 0 0
Salesforce Com COM 79466L302 3,193 15,040 SH   SOLE   14,260 0 780
Sch St US Trsr Etf ETF 808524862 370 7,473 SH   SOLE   7,473 0 0
Sch US Tips Etf ETF 808524870 347 5,723 SH   SOLE   5,723 0 0
Schlumberger Ltd COM 806857108 5,172 125,204 SH   SOLE   121,048 0 4,156
Schwab Emerging Mkt ETF ETF 808524706 3,296 118,686 SH   SOLE   112,686 0 6,000
Schwab US Market ETF ETF 808524102 938 17,575 SH   SOLE   17,575 0 0
Service Now Inc COM 81762P102 2,066 3,710 SH   SOLE   3,575 0 135
Skyworks Solutions Inc COM 83088M102 6,150 46,142 SH   SOLE   45,291 0 852
Spdr Gold TRUST COM 78463V107 373 2,067 SH   SOLE   2,067 0 0
Starbucks Corp COM 855244109 4,603 50,596 SH   SOLE   49,980 0 615
Steris Corp COM G8473T100 8,453 34,964 SH   SOLE   31,637 0 3,326
Stryker Corp COM 863667101 14,401 53,866 SH   SOLE   51,063 0 2,803
Sysco Corporation COM 871829107 1,159 14,191 SH   SOLE   14,191 0 0
T J X Cos Inc COM 872540109 1,840 30,374 SH   SOLE   30,374 0 0
Tesla Motors Inc COM 88160R101 442 410 SH   SOLE   410 0 0
Texas Instruments Inc COM 882508104 374 2,037 SH   SOLE   1,460 0 577
Thomson Reuters Corp COM 884903105 2,972 27,300 SH   SOLE   27,300 0 0
Thor Industries Inc COM 885160101 1,885 23,947 SH   SOLE   23,332 0 615
Tyson Foods Inc Cl A COM 902494103 11,286 125,915 SH   SOLE   119,837 0 6,078
U S A Truck Inc COM 902925106 1,138 55,219 SH   SOLE   55,219 0 0
Unilever Plc Adr New COM 904767704 1,807 39,650 SH   SOLE   39,650 0 0
United Healthcare Cor COM 91324P102 25,081 49,182 SH   SOLE   47,007 0 2,175
United Rentals Inc COM 911363109 2,715 7,643 SH   SOLE   7,503 0 140
Vanguard Corp Bond Etf ETF 92206C870 4,632 53,837 SH   SOLE   49,137 0 4,700
Vanguard Emerging Market ETF 922042858 303 6,560 SH   SOLE   6,560 0 0
Vanguard Info Technology ETF 92204A702 212 510 SH   SOLE   510 0 0
Verisk Analytics Inc COM 92345Y106 3,118 14,526 SH   SOLE   14,426 0 100
Verizon Communications COM 92343V104 1,351 26,529 SH   SOLE   26,529 0 0
Visa Inc Cl A COM 92826C839 1,935 8,724 SH   SOLE   8,724 0 0
Wal-Mart Stores Inc COM 931142103 10,418 69,955 SH   SOLE   66,333 0 3,622
Waste Management Inc Del COM 94106L109 362 2,285 SH   SOLE   2,285 0 0
Welltower Inc COM 95040Q104 3,727 38,763 SH   SOLE   37,363 0 1,400
Willis Tower Watson P F COM G96629103 2,310 9,780 SH   SOLE   9,530 0 250
Workday Inc COM 98138H101 2,539 10,602 SH   SOLE   10,222 0 380
Wpp Plc New COM 92937A102 1,852 28,285 SH   SOLE   28,285 0 0
Zions Bancorp COM 989701107 416 6,350 SH   SOLE   6,350 0 0
Zoetis Inc COM 98978V103 2,964 15,717 SH   SOLE   14,924 0 793