NSS insider transactions

Del Alamo Jorge A. returned 116,031 units of Common Units to the company, closing all direct ownership in the company (SEC Form 4)

Burnett William B returned 59,896 units of Common Units to the company, closing all direct ownership in the company (SEC Form 4)

Wade Suzanne Allford returned 14,903 units of Common Units to the company, closing all direct ownership in the company (SEC Form 4)

Brown Mary Rose returned 360,841 units of Common Units to the company, closing all direct ownership in the company (SEC Form 4)

Shoaf Thomas R returned 241,642 units of Common Units to the company, closing all direct ownership in the company (SEC Form 4)

Bates Jesse D returned 84,479 units of Common Units to the company, closing all direct ownership in the company (SEC Form 4)

Salinas Martin returned 53,996 units of Common Units to the company, closing all direct ownership in the company (SEC Form 4)

Oliver Daniel S. returned 242,961 units of Common Units to the company, closing all direct ownership in the company (SEC Form 4)

Barron Bradley C returned 1,013,739 units of Common Units to the company, closing all direct ownership in the company (SEC Form 4)

Rosier William Grady returned 128,407 units of Common Units to the company, closing all direct ownership in the company (SEC Form 4)

Munch Robert J returned 54,020 units of Common Units to the company, closing all direct ownership in the company (SEC Form 4)

Leblanc-Burley Jelynne returned 43,573 units of Common Units to the company, closing all direct ownership in the company (SEC Form 4)

Hill Dan J returned 90,021 units of Common Units to the company, closing all direct ownership in the company (SEC Form 4)

Perry Amy L. returned 198,955 units of Common Units to the company, closing all direct ownership in the company (SEC Form 4)

Grier Eddie Arthur returned 28,696 units of Common Units to the company, closing all direct ownership in the company (SEC Form 4)

Grier Eddie Arthur was granted 7,714 units of Common Units, increasing direct ownership by 37% to 28,696 units (SEC Form 4)

Salinas Martin was granted 7,714 units of Common Units, increasing direct ownership by 17% to 53,996 units (SEC Form 4)

Shoaf Thomas R was granted 45,481 units of Common Units and covered exercise/tax liability with 12,955 units of Common Units, increasing direct ownership by 16% to 241,642 units (SEC Form 4)

Perry Amy L. covered exercise/tax liability with 9,879 units of Common Units and was granted 45,481 units of Common Units, increasing direct ownership by 22% to 198,955 units (SEC Form 4)

Oliver Daniel S. was granted 45,481 units of Common Units and covered exercise/tax liability with 9,251 units of Common Units, increasing direct ownership by 18% to 242,961 units (SEC Form 4)

Del Alamo Jorge A. covered exercise/tax liability with 4,433 units of Common Units and was granted 18,950 units of Common Units, increasing direct ownership by 14% to 116,031 units (SEC Form 4)

Wade Suzanne Allford was granted 7,714 units of Common Units, increasing direct ownership by 107% to 14,903 units (SEC Form 4)

Rosier William Grady was granted 7,714 units of Common Units, increasing direct ownership by 19% to 49,192 units (SEC Form 4)

Munch Robert J was granted 7,714 units of Common Units, increasing direct ownership by 17% to 54,020 units (SEC Form 4)

Leblanc-Burley Jelynne was granted 7,714 units of Common Units, increasing direct ownership by 22% to 43,573 units (SEC Form 4)

Hill Dan J was granted 7,714 units of Common Units, increasing direct ownership by 9% to 89,421 units (SEC Form 4)

Burnett William B was granted 7,714 units of Common Units, increasing direct ownership by 104% to 15,143 units (SEC Form 4)

Brown Mary Rose was granted 45,481 units of Common Units and covered exercise/tax liability with 12,689 units of Common Units, increasing direct ownership by 10% to 360,841 units (SEC Form 4)

Bates Jesse D was granted 7,714 units of Common Units, increasing direct ownership by 64% to 19,724 units (SEC Form 4)

Barron Bradley C covered exercise/tax liability with 53,667 units of Common Units and was granted 196,137 units of Common Units, increasing direct ownership by 16% to 1,013,739 units (SEC Form 4)

SEC Form 4 filed by Perry Amy L.

SEC Form 4: Wade Suzanne Allford was granted 7,189 units of Common Units

SEC Form 3 filed by new insider Wade Suzanne Allford

SEC Form 4: Shoaf Thomas R was granted 16,765 units of Common Units and covered exercise/tax liability with 6,605 units of Common Units, increasing direct ownership by 5% to 227,052 units (withholding obligation)

SEC Form 4: Perry Amy L. was granted 12,938 units of Common Units and covered exercise/tax liability with 5,457 units of Common Units, increasing direct ownership by 5% to 164,264 units to cover taxes

SEC Form 4: Oliver Daniel S. was granted 12,773 units of Common Units and covered exercise/tax liability with 5,136 units of Common Units, increasing direct ownership by 4% to 206,731 units (withholding tax)

SEC Form 4: Del Alamo Jorge A. covered exercise/tax liability with 2,613 units of Common Units and was granted 6,122 units of Common Units, increasing direct ownership by 4% to 101,514 units (tax liability)

SEC Form 4: Brown Mary Rose was granted 16,552 units of Common Units and covered exercise/tax liability with 6,865 units of Common Units, increasing direct ownership by 3% to 328,049 units (withholding obligation)

SEC Form 4: Barron Bradley C gifted 3,250 units of Common Units, was granted 63,288 units of Common Units and covered exercise/tax liability with 27,056 units of Common Units, increasing direct ownership by 4% to 871,269 units (for withholding tax)

SEC Form 4: Perry Amy L. gifted 2,330 units of Common Units, decreasing direct ownership by 1% to 156,783 units

SEC Form 4: Rosier William Grady was granted 7,458 units of Common Units, increasing direct ownership by 22% to 41,478 units

SEC Form 4: Shoaf Thomas R was granted 45,270 units of Common Units and covered exercise/tax liability with 10,220 units of Common Units, increasing direct ownership by 19% to 216,892 units to cover withholding tax

SEC Form 4: Salinas Martin was granted 7,458 units of Common Units, increasing direct ownership by 19% to 46,282 units

SEC Form 4: Perry Amy L. covered exercise/tax liability with 7,534 units of Common Units and was granted 35,150 units of Common Units, increasing direct ownership by 21% to 159,113 units to satisfy withholding obligation

SEC Form 4: Oliver Daniel S. was granted 34,710 units of Common Units and covered exercise/tax liability with 7,059 units of Common Units, increasing direct ownership by 16% to 199,094 units (withholding obligation)

SEC Form 4: Munch Robert J was granted 7,458 units of Common Units, increasing direct ownership by 19% to 46,306 units

SEC Form 4: Leblanc-Burley Jelynne was granted 7,458 units of Common Units, increasing direct ownership by 26% to 35,859 units

SEC Form 4: Hill Dan J was granted 7,458 units of Common Units, increasing direct ownership by 10% to 81,707 units

SEC Form 4: Grier Eddie Arthur was granted 7,458 units of Common Units, increasing direct ownership by 55% to 20,982 units

SEC Form 4: Del Alamo Jorge A. was granted 15,255 units of Common Units and covered exercise/tax liability with 3,142 units of Common Units, increasing direct ownership by 14% to 98,005 units to satisfy withholding tax

SEC Form 4: Burnett William B was granted 7,458 units of Common Units, increasing direct ownership by 97% to 15,127 units

SEC Form 4: Brown Mary Rose was granted 42,875 units of Common Units and covered exercise/tax liability with 10,205 units of Common Units, increasing direct ownership by 11% to 318,362 units to cover withholding tax

SEC Form 4: Bates Jesse D was granted 7,458 units of Common Units, increasing direct ownership by 61% to 19,708 units

SEC Form 4: Barron Bradley C covered exercise/tax liability with 38,832 units of Common Units, gifted 1,600 units of Common Units and was granted 199,145 units of Common Units, increasing direct ownership by 23% to 838,287 units to cover withholding tax

SEC Form 4: Greehey William E bought $1,744,279 worth of Common Units (110,299 units at $15.81), increasing direct ownership by 1% to 10,014,333 units

SEC Form 4: Shoaf Thomas R was granted 11,445 units of Common Units and covered exercise/tax liability with 4,588 units of Common Units, increasing direct ownership by 4% to 181,842 units (tax liability)

SEC Form 4: Perry Amy L. was granted 9,820 units of Common Units and covered exercise/tax liability with 4,199 units of Common Units, increasing direct ownership by 4% to 131,497 units to satisfy tax liability

SEC Form 4: Oliver Daniel S. was granted 9,694 units of Common Units and covered exercise/tax liability with 3,954 units of Common Units, increasing direct ownership by 3% to 171,443 units (tax withholding)

SEC Form 4: Del Alamo Jorge A. was granted 4,657 units of Common Units and covered exercise/tax liability with 1,927 units of Common Units, increasing direct ownership by 3% to 85,892 units (for tax liability)

SEC Form 4: Brown Mary Rose was granted 10,780 units of Common Units and covered exercise/tax liability with 4,560 units of Common Units, increasing direct ownership by 2% to 285,692 units to cover withholding tax