The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete. | |||||||||||||||||
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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 13F FORM 13F INFORMATION TABLE |
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| 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 |
| BARCLAYS BK PLC CONV ZERO CPN | Convertible Bonds | 06741JV89 | 46 | 46,000 | PRN | SOLE | 0 | 46,000 | 0 | 0 | |
| APPLE INC. | Common Stocks | 037833100 | 32,474 | 244,739 | SH | SOLE | 0 | 244,739 | 0 | 0 | |
| ABB LIMITED | Common Stocks | 000375204 | 14,348 | 513,170 | SH | SOLE | 0 | 513,170 | 0 | 0 | |
| ACCENTURE PLC | Common Stocks | G1151C101 | 10,485 | 40,139 | SH | SOLE | 0 | 40,139 | 0 | 0 | |
| AMGEN INC | Common Stocks | 031162100 | 360 | 1,564 | SH | SOLE | 0 | 1,564 | 0 | 0 | |
| AMAZON COM INC | Common Stocks | 023135106 | 931 | 286 | SH | SOLE | 0 | 286 | 0 | 0 | |
| ACTIVISION BLIZZARD, INC. | Common Stocks | 00507V109 | 19,370 | 208,616 | SH | SOLE | 0 | 208,616 | 0 | 0 | |
| BALLARD POWER SYSTEMS | Common Stocks | 058586108 | 286 | 12,226 | SH | SOLE | 0 | 12,226 | 0 | 0 | |
| BRISTOL-MYERS SQUIBB CO | Common Stocks | 110122108 | 25,244 | 406,964 | SH | SOLE | 0 | 406,964 | 0 | 0 | |
| BRISTOL-MYERS CONTINGENT VALUE RT EXP 3/31/2021 | Common Stocks | 110122157 | 204 | 295,449 | SH | SOLE | 0 | 295,449 | 0 | 0 | |
| BERKSHIRE HATHAWAY CLASS B | Common Stocks | 084670702 | 261 | 1,125 | SH | SOLE | 0 | 1,125 | 0 | 0 | |
| BLACK STONE MINERALS LP | Common Stocks | 09225M101 | 117 | 17,529 | SH | SOLE | 0 | 17,529 | 0 | 0 | |
| ANHEUSER-BUSCH INBEV SA | Common Stocks | 03524A108 | 16,930 | 242,171 | SH | SOLE | 0 | 242,171 | 0 | 0 | |
| CHECK POINT SOFTWARE TECH | Common Stocks | M22465104 | 12,024 | 90,464 | SH | SOLE | 0 | 90,464 | 0 | 0 | |
| DORCHESTER MINERALS LP | Common Stocks | 25820R105 | 370 | 33,880 | SH | SOLE | 0 | 33,880 | 0 | 0 | |
| EBAY INC | Common Stocks | 278642103 | 13,997 | 278,545 | SH | SOLE | 0 | 278,545 | 0 | 0 | |
| ENTERPRISE PRODUCTS PRTNS | Common Stocks | 293792107 | 22,542 | 1,150,688 | SH | SOLE | 0 | 1,150,688 | 0 | 0 | |
| GILEAD SCIENCES, INC | Common Stocks | 375558103 | 15,618 | 268,082 | SH | SOLE | 0 | 268,082 | 0 | 0 | |
| GAMING AND LEISURE PROPERTIES INC. | Common Stocks | 36467J108 | 966 | 22,794 | SH | SOLE | 0 | 22,794 | 0 | 0 | |
| ALPHABET INC CL C (GOOGLE C) | Common Stocks | 02079K107 | 45,712 | 26,093 | SH | SOLE | 0 | 26,093 | 0 | 0 | |
| ALPHABET INC CL A (GOOGLE A) | Common Stocks | 02079K305 | 24,483 | 13,969 | SH | SOLE | 0 | 13,969 | 0 | 0 | |
| HONEYWELL INTL INC | Common Stocks | 438516106 | 2,423 | 11,390 | SH | SOLE | 0 | 11,390 | 0 | 0 | |
| INOVALON HOLDINGS INC. (Class A) | Common Stocks | 45781D101 | 8,250 | 454,053 | SH | SOLE | 0 | 454,053 | 0 | 0 | |
| KINDER MORGAN, INC. | Common Stocks | 49456B101 | 18,093 | 1,323,576 | SH | SOLE | 0 | 1,323,576 | 0 | 0 | |
| LIBERTY MEDIA - SIRIUSXM CL C | Common Stocks | 531229607 | 6,364 | 146,267 | SH | SOLE | 0 | 146,267 | 0 | 0 | |
| LAS VEGAS SANDS | Common Stocks | 517834107 | 12,210 | 204,863 | SH | SOLE | 0 | 204,863 | 0 | 0 | |
| MICROSOFT CORPORATION | Common Stocks | 594918104 | 407 | 1,829 | SH | SOLE | 0 | 1,829 | 0 | 0 | |
| MATADOR RESOURCES CO. | Common Stocks | 576485205 | 543 | 45,000 | SH | SOLE | 0 | 45,000 | 0 | 0 | |
| NIELSEN HOLDINGS PLC | Common Stocks | G6518L108 | 15,868 | 760,317 | SH | SOLE | 0 | 760,317 | 0 | 0 | |
| NVIDIA CORP | Common Stocks | 67066G104 | 522 | 1,000 | SH | SOLE | 0 | 1,000 | 0 | 0 | |
| NXP SEMICONDUCT | Common Stocks | N6596X109 | 1,654 | 10,400 | SH | SOLE | 0 | 10,400 | 0 | 0 | |
| PAYCHEX INC. | Common Stocks | 704326107 | 548 | 5,881 | SH | SOLE | 0 | 5,881 | 0 | 0 | |
| HEALTHPEAK PROPERTIES, INC. | Common Stocks | 42250P103 | 2,500 | 82,698 | SH | SOLE | 0 | 82,698 | 0 | 0 | |
| PEPSICO INC | Common Stocks | 713448108 | 288 | 1,944 | SH | SOLE | 0 | 1,944 | 0 | 0 | |
| PFIZER INC | Common Stocks | 717081103 | 446 | 12,107 | SH | SOLE | 0 | 12,107 | 0 | 0 | |
| QUALCOMM INC | Common Stocks | 747525103 | 39,703 | 260,623 | SH | SOLE | 0 | 260,623 | 0 | 0 | |
| ROYAL DUTCH SHELL PLC ADR CL B | Common Stocks | 780259107 | 18,396 | 547,335 | SH | SOLE | 0 | 547,335 | 0 | 0 | |
| REATA PHARMACEUTICALS INC. | Common Stocks | 75615P103 | 476 | 3,848 | SH | SOLE | 0 | 3,848 | 0 | 0 | |
| RAYTHEON TECHNOLOGIES CORP. | Common Stocks | 75513E101 | 13,225 | 184,941 | SH | SOLE | 0 | 184,941 | 0 | 0 | |
| SPROUTS FARMERS MARKET INC | Common Stocks | 85208M102 | 12,878 | 640,717 | SH | SOLE | 0 | 640,717 | 0 | 0 | |
| SPIRIT AEROSYSTEMS | Common Stocks | 848574109 | 18,554 | 474,654 | SH | SOLE | 0 | 474,654 | 0 | 0 | |
| SPDR S & P 500 ETF | Common Stocks | 78462F103 | 407 | 1,087 | SH | SOLE | 0 | 1,087 | 0 | 0 | |
| UNITEDHEALTH GROUP INC. | Common Stocks | 91324P102 | 20,307 | 57,907 | SH | SOLE | 0 | 57,907 | 0 | 0 | |
| VISA, INC. | Common Stocks | 92826C839 | 759 | 3,470 | SH | SOLE | 0 | 3,470 | 0 | 0 | |
| XYLEM INC. | Common Stocks | 98419M100 | 14,777 | 145,176 | SH | SOLE | 0 | 145,176 | 0 | 0 | |