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
APPLE INC. Common Stocks 037833100 30,199 218,516 SH   SOLE 0 218,516 0 0
ABB LIMITED Common Stocks 000375204 10,983 428,011 SH   SOLE 0 428,011 0 0
ACCENTURE PLC Common Stocks G1151C101 7,070 27,478 SH   SOLE 0 27,478 0 0
AMGEN INC Common Stocks 031162100 346 1,534 SH   SOLE 0 1,534 0 0
AMAZON COM INC Common Stocks 023135106 683 6,040 SH   SOLE 0 6,040 0 0
ACTIVISION BLIZZARD, INC. Common Stocks 00507V109 23,611 317,607 SH   SOLE 0 317,607 0 0
BRISTOL-MYERS SQUIBB CO Common Stocks 110122108 27,606 388,327 SH   SOLE 0 388,327 0 0
BLACK STONE MINERALS LP Common Stocks 09225M101 24,653 1,575,272 SH   SOLE 0 1,575,272 0 0
ANHEUSER-BUSCH INBEV SA Common Stocks 03524A108 12,851 284,571 SH   SOLE 0 284,571 0 0
CHECK POINT SOFTWARE TECH Common Stocks M22465104 13,071 116,688 SH   SOLE 0 116,688 0 0
DESPEGAR.COM Common Stocks G27358103 1,041 182,700 SH   SOLE 0 182,700 0 0
DORCHESTER MINERALS LP Common Stocks 25820R105 477 19,080 SH   SOLE 0 19,080 0 0
EBAY INC Common Stocks 278642103 1,061 28,837 SH   SOLE 0 28,837 0 0
ENTERPRISE PRODUCTS PRTNS Common Stocks 293792107 28,866 1,213,877 SH   SOLE 0 1,213,877 0 0
GAMING AND LEISURE PROPERTIES INC. Common Stocks 36467J108 1,008 22,794 SH   SOLE 0 22,794 0 0
ALPHABET INC CL C (GOOGLE C) Common Stocks 02079K107 49,649 516,370 SH   SOLE 0 516,370 0 0
ALPHABET INC CL A (GOOGLE A) Common Stocks 02079K305 20,875 218,240 SH   SOLE 0 218,240 0 0
HONEYWELL INTL INC Common Stocks 438516106 1,750 10,480 SH   SOLE 0 10,480 0 0
JP MORGAN CHASE & CO Common Stocks 46625H100 320 3,066 SH   SOLE 0 3,066 0 0
KINDER MORGAN, INC. Common Stocks 49456B101 26,846 1,613,351 SH   SOLE 0 1,613,351 0 0
LOCKHEED MARTIN CORP Common Stocks 539830109 17,203 44,533 SH   SOLE 0 44,533 0 0
LIBERTY MEDIA - SIRIUSXM CL C Common Stocks 531229607 12,464 330,529 SH   SOLE 0 330,529 0 0
LAS VEGAS SANDS Common Stocks 517834107 12,355 329,288 SH   SOLE 0 329,288 0 0
MICROSOFT CORPORATION Common Stocks 594918104 407 1,749 SH   SOLE 0 1,749 0 0
MATADOR RESOURCES CO. Common Stocks 576485205 1,468 30,000 SH   SOLE 0 30,000 0 0
NIELSEN HOLDINGS PLC Common Stocks G6518L108 18,012 649,775 SH   SOLE 0 649,775 0 0
NVIDIA CORP Common Stocks 67066G104 227 1,868 SH   SOLE 0 1,868 0 0
PAYCHEX INC. Common Stocks 704326107 669 5,961 SH   SOLE 0 5,961 0 0
HEALTHPEAK PROPERTIES, INC. Common Stocks 42250P103 940 40,998 SH   SOLE 0 40,998 0 0
PEPSICO INC Common Stocks 713448108 318 1,949 SH   SOLE 0 1,949 0 0
PROCTER & GAMBLE Common Stocks 742718109 400 3,171 SH   SOLE 0 3,171 0 0
PAYPAL HOLDINGS, INC. Common Stocks 70450Y103 17,413 202,314 SH   SOLE 0 202,314 0 0
QUALCOMM INC Common Stocks 747525103 25,554 226,183 SH   SOLE 0 226,183 0 0
ROCKET LAB USA INC COM Common Stocks 773122106 41 10,000 SH   SOLE 0 10,000 0 0
RAYTHEON TECHNOLOGIES CORP. Common Stocks 75513E101 16,298 199,091 SH   SOLE 0 199,091 0 0
SPROUTS FARMERS MARKET INC Common Stocks 85208M102 13,108 472,364 SH   SOLE 0 472,364 0 0
SHELL PLC Common Stocks 780259305 28,394 570,619 SH   SOLE 0 570,619 0 0
SPIRIT AEROSYSTEMS Common Stocks 848574109 11,651 531,529 SH   SOLE 0 531,529 0 0
TESLA MOTORS INC. Common Stocks 88160R101 281 1,059 SH   SOLE 0 1,059 0 0
UNITEDHEALTH GROUP INC. Common Stocks 91324P102 27,823 55,090 SH   SOLE 0 55,090 0 0
VISA, INC. Common Stocks 92826C839 560 3,150 SH   SOLE 0 3,150 0 0
EXXON MOBIL CORP Common Stocks 30231G102 205 2,351 SH   SOLE 0 2,351 0 0
XYLEM INC. Common Stocks 98419M100 9,888 113,189 SH   SOLE 0 113,189 0 0