U.S. Silica Company
Plan context: U.S. Silica Retirement Savings Plan
EIN 23-0958670 • Katy, TX • 97 filings • 21 plans
Current Snapshot
Latest Year
2024
2024 Participants
1,746
2024 Assets
$283,970,017
2024 Contributions
$24,989,408
Historical Graphs
Total Assets Over Time
Aggregate end-of-year assets by filing year, excluding zero-asset years
Participants Over Time
Largest reported end-of-year plan headcount by filing year, used to avoid double-counting participants across overlapping plans
Company Timeline
Year summaries and individual filings are combined here so you can stay in one place while moving across years and plan filings.
| Year / Filing | Filings | Participants | Assets | Contributions | Contrib./Participant |
|---|---|---|---|---|---|
| 2024 | 3 | 1,746 | $283,970,017 | $24,989,408 | $14,312iApproximate average salary by contribution assumption: employee only about $357,809 at 4% or $238,540 at 6%; with 50% employer match about $238,540 at 4% or $159,026 at 6%; with 100% employer match about $178,905 at 4% or $119,270 at 6%. |
| U.S. Silica Retirement Savings Plan | - | 1,746 | $215,015,132 | $21,824,408 | $12,500iApproximate average salary by contribution assumption: employee only about $312,492 at 4% or $208,328 at 6%; with 50% employer match about $208,328 at 4% or $138,885 at 6%; with 100% employer match about $156,246 at 4% or $104,164 at 6%. |
| U. S. Silica Retirement Plan | - | 161 | $68,954,885 | $3,165,000 | $19,658iApproximate average salary by contribution assumption: employee only about $491,460 at 4% or $327,640 at 6%; with 50% employer match about $327,640 at 4% or $218,427 at 6%; with 100% employer match about $245,730 at 4% or $163,820 at 6%. |
| U.S. Silica Company Cafeteria Plan | - | 1,668 | - | - | - |
| 2023 | 3 | 1,896 | $262,337,385 | $23,061,410 | $12,163iApproximate average salary by contribution assumption: employee only about $304,080 at 4% or $202,720 at 6%; with 50% employer match about $202,720 at 4% or $135,147 at 6%; with 100% employer match about $152,040 at 4% or $101,360 at 6%. |
| U.S. Silica Retirement Savings Plan | - | 1,896 | $193,213,853 | $21,015,410 | $11,084iApproximate average salary by contribution assumption: employee only about $277,102 at 4% or $184,735 at 6%; with 50% employer match about $184,735 at 4% or $123,156 at 6%; with 100% employer match about $138,551 at 4% or $92,367 at 6%. |
| U. S. Silica Retirement Plan | - | 180 | $69,123,532 | $2,046,000 | $11,367iApproximate average salary by contribution assumption: employee only about $284,167 at 4% or $189,444 at 6%; with 50% employer match about $189,444 at 4% or $126,296 at 6%; with 100% employer match about $142,083 at 4% or $94,722 at 6%. |
| U.S. Silica Company Cafeteria Plan | - | 1,591 | - | - | - |
| 2022 | 3 | 1,986 | $250,241,815 | $21,953,353 | $11,054iApproximate average salary by contribution assumption: employee only about $276,351 at 4% or $184,234 at 6%; with 50% employer match about $184,234 at 4% or $122,823 at 6%; with 100% employer match about $138,176 at 4% or $92,117 at 6%. |
| U.S. Silica Retirement Savings Plan | - | 1,986 | $159,306,033 | $19,953,353 | $10,047iApproximate average salary by contribution assumption: employee only about $251,175 at 4% or $167,450 at 6%; with 50% employer match about $167,450 at 4% or $111,633 at 6%; with 100% employer match about $125,588 at 4% or $83,725 at 6%. |
| U. S. Silica Retirement Plan | - | 193 | $90,935,782 | $2,000,000 | $10,363iApproximate average salary by contribution assumption: employee only about $259,067 at 4% or $172,712 at 6%; with 50% employer match about $172,712 at 4% or $115,141 at 6%; with 100% employer match about $129,534 at 4% or $86,356 at 6%. |
| U.S. Silica Company Cafeteria Plan | - | 1,646 | - | - | - |
| 2021 | 3 | 1,798 | $310,572,365 | $18,290,772 | $10,173iApproximate average salary by contribution assumption: employee only about $254,321 at 4% or $169,547 at 6%; with 50% employer match about $169,547 at 4% or $113,032 at 6%; with 100% employer match about $127,161 at 4% or $84,774 at 6%. |
| U.S. Silica Retirement Savings Plan | - | 1,798 | $189,644,388 | $16,790,772 | $9,339iApproximate average salary by contribution assumption: employee only about $233,465 at 4% or $155,643 at 6%; with 50% employer match about $155,643 at 4% or $103,762 at 6%; with 100% employer match about $116,732 at 4% or $77,822 at 6%. |
| U. S. Silica Retirement Plan | - | 217 | $120,927,977 | $1,500,000 | $6,912iApproximate average salary by contribution assumption: employee only about $172,811 at 4% or $115,207 at 6%; with 50% employer match about $115,207 at 4% or $76,805 at 6%; with 100% employer match about $86,406 at 4% or $57,604 at 6%. |
| U.S. Silica Company Cafeteria Plan | - | 1,754 | - | - | - |
| 2020 | 3 | 2,902 | $295,709,960 | $20,366,969 | $7,018iApproximate average salary by contribution assumption: employee only about $175,456 at 4% or $116,971 at 6%; with 50% employer match about $116,971 at 4% or $77,981 at 6%; with 100% employer match about $87,728 at 4% or $58,485 at 6%. |
| U.S. Silica Retirement Savings Plan | - | 1,625 | $173,829,733 | $15,166,969 | $9,334iApproximate average salary by contribution assumption: employee only about $233,338 at 4% or $155,559 at 6%; with 50% employer match about $155,559 at 4% or $103,706 at 6%; with 100% employer match about $116,669 at 4% or $77,779 at 6%. |
| U. S. Silica Retirement Plan | - | 244 | $121,880,227 | $5,200,000 | $21,311iApproximate average salary by contribution assumption: employee only about $532,787 at 4% or $355,191 at 6%; with 50% employer match about $355,191 at 4% or $236,794 at 6%; with 100% employer match about $266,393 at 4% or $177,596 at 6%. |
| U.S. Silica Company Cafeteria Plan | - | 2,902 | - | - | - |
| 2019 | 3 | 1,673 | $281,758,183 | $22,915,459 | $13,697iApproximate average salary by contribution assumption: employee only about $342,431 at 4% or $228,287 at 6%; with 50% employer match about $228,287 at 4% or $152,191 at 6%; with 100% employer match about $171,215 at 4% or $114,144 at 6%. |
| U.S. Silica Retirement Savings Plan | - | 1,673 | $169,735,532 | $19,591,459 | $11,710iApproximate average salary by contribution assumption: employee only about $292,759 at 4% or $195,173 at 6%; with 50% employer match about $195,173 at 4% or $130,115 at 6%; with 100% employer match about $146,380 at 4% or $97,586 at 6%. |
| U. S. Silica Retirement Plan | - | 290 | $112,022,651 | $3,324,000 | $11,462iApproximate average salary by contribution assumption: employee only about $286,552 at 4% or $191,034 at 6%; with 50% employer match about $191,034 at 4% or $127,356 at 6%; with 100% employer match about $143,276 at 4% or $95,517 at 6%. |
| U.S. Silica Company Cafeteria Plan | - | 1,025 | - | - | - |
| 2018 | 3 | 5,748 | $177,573,734 | $20,164,905 | $3,508iApproximate average salary by contribution assumption: employee only about $87,704 at 4% or $58,469 at 6%; with 50% employer match about $58,469 at 4% or $38,980 at 6%; with 100% employer match about $43,852 at 4% or $29,235 at 6%. |
| U.S. Silica Retirement Savings Plan | - | 2,088 | $93,689,977 | $17,219,905 | $8,247iApproximate average salary by contribution assumption: employee only about $206,177 at 4% or $137,451 at 6%; with 50% employer match about $137,451 at 4% or $91,634 at 6%; with 100% employer match about $103,089 at 4% or $68,726 at 6%. |
| U. S. Silica Retirement Plan | - | 226 | $83,883,757 | $2,945,000 | $13,031iApproximate average salary by contribution assumption: employee only about $325,774 at 4% or $217,183 at 6%; with 50% employer match about $217,183 at 4% or $144,789 at 6%; with 100% employer match about $162,887 at 4% or $108,591 at 6%. |
| U.S. Silica Company Cafeteria Plan | - | 5,748 | - | - | - |
| 2017 | 4 | 1,188 | $181,637,141 | $11,889,750 | $10,008iApproximate average salary by contribution assumption: employee only about $250,205 at 4% or $166,803 at 6%; with 50% employer match about $166,803 at 4% or $111,202 at 6%; with 100% employer match about $125,103 at 4% or $83,402 at 6%. |
| U. S. Silica Retirement Plan | - | 248 | $93,169,320 | $2,030,000 | $8,185iApproximate average salary by contribution assumption: employee only about $204,637 at 4% or $136,425 at 6%; with 50% employer match about $136,425 at 4% or $90,950 at 6%; with 100% employer match about $102,319 at 4% or $68,212 at 6%. |
| U.S. Silica Retirement Savings Plan | - | 1,188 | $88,467,821 | $9,859,750 | $8,299iApproximate average salary by contribution assumption: employee only about $207,486 at 4% or $138,324 at 6%; with 50% employer match about $138,324 at 4% or $92,216 at 6%; with 100% employer match about $103,743 at 4% or $69,162 at 6%. |
| U.S. Silica Company Cafeteria Plan | - | 1,157 | - | - | - |
| U.S. Silica Company Welfare Benefit Trust Plan | - | 0 | - | - | - |
| 2016 | 4 | 2,957 | $154,859,965 | $8,332,694 | $2,818iApproximate average salary by contribution assumption: employee only about $70,449 at 4% or $46,966 at 6%; with 50% employer match about $46,966 at 4% or $31,311 at 6%; with 100% employer match about $35,224 at 4% or $23,483 at 6%. |
| U. S. Silica Retirement Plan | - | 259 | $85,038,019 | $1,200,000 | $4,633iApproximate average salary by contribution assumption: employee only about $115,830 at 4% or $77,220 at 6%; with 50% employer match about $77,220 at 4% or $51,480 at 6%; with 100% employer match about $57,915 at 4% or $38,610 at 6%. |
| U.S. Silica Retirement Savings Plan | - | 980 | $69,807,936 | $7,132,694 | $7,278iApproximate average salary by contribution assumption: employee only about $181,956 at 4% or $121,304 at 6%; with 50% employer match about $121,304 at 4% or $80,870 at 6%; with 100% employer match about $90,978 at 4% or $60,652 at 6%. |
| U.S. Silica Company Welfare Benefit Trust Plan | - | 2,957 | $14,010 | - | - |
| U.S. Silica Company Cafeteria Plan | - | 2,957 | - | - | - |
| 2015 | 4 | 1,004 | $150,760,406 | $7,965,204 | $7,933iApproximate average salary by contribution assumption: employee only about $198,337 at 4% or $132,225 at 6%; with 50% employer match about $132,225 at 4% or $88,150 at 6%; with 100% employer match about $99,168 at 4% or $66,112 at 6%. |
| U. S. Silica Retirement Plan | - | 289 | $84,712,277 | - | - |
| U.S. Silica Retirement Savings Plan | - | 1,004 | $66,031,035 | $7,965,204 | $7,933iApproximate average salary by contribution assumption: employee only about $198,337 at 4% or $132,225 at 6%; with 50% employer match about $132,225 at 4% or $88,150 at 6%; with 100% employer match about $99,168 at 4% or $66,112 at 6%. |
| U.S. Silica Company Welfare Benefit Trust Plan | - | 999 | $17,094 | - | - |
| U.S. Silica Company Cafeteria Plan | - | 999 | - | - | - |
| 2014 | 4 | 1,100 | $157,427,042 | $11,742,728 | $10,675iApproximate average salary by contribution assumption: employee only about $266,880 at 4% or $177,920 at 6%; with 50% employer match about $177,920 at 4% or $118,613 at 6%; with 100% employer match about $133,440 at 4% or $88,960 at 6%. |
| U. S. Silica Retirement Plan | - | 311 | $92,924,969 | $2,025,000 | $6,511iApproximate average salary by contribution assumption: employee only about $162,781 at 4% or $108,521 at 6%; with 50% employer match about $108,521 at 4% or $72,347 at 6%; with 100% employer match about $81,391 at 4% or $54,260 at 6%. |
| U.S. Silica Retirement Savings Plan | - | 1,100 | $64,481,983 | $9,717,728 | $8,834iApproximate average salary by contribution assumption: employee only about $220,857 at 4% or $147,238 at 6%; with 50% employer match about $147,238 at 4% or $98,159 at 6%; with 100% employer match about $110,429 at 4% or $73,619 at 6%. |
| U.S. Silica Company Welfare Benefit Trust Plan | - | 1,075 | $20,090 | - | - |
| U.S. Silica Company Cafeteria Plan | - | 1,075 | - | - | - |
| 2013 | 4 | 852 | $149,517,131 | $10,234,208 | $12,012iApproximate average salary by contribution assumption: employee only about $300,300 at 4% or $200,200 at 6%; with 50% employer match about $200,200 at 4% or $133,466 at 6%; with 100% employer match about $150,150 at 4% or $100,100 at 6%. |
| U. S. Silica Retirement Plan | - | 332 | $89,966,976 | $4,610,000 | $13,886iApproximate average salary by contribution assumption: employee only about $347,139 at 4% or $231,426 at 6%; with 50% employer match about $231,426 at 4% or $154,284 at 6%; with 100% employer match about $173,569 at 4% or $115,713 at 6%. |
| U.S. Silica Retirement Savings Plan | - | 852 | $59,499,291 | $5,624,208 | $6,601iApproximate average salary by contribution assumption: employee only about $165,030 at 4% or $110,020 at 6%; with 50% employer match about $110,020 at 4% or $73,346 at 6%; with 100% employer match about $82,515 at 4% or $55,010 at 6%. |
| U.S. Silica Company Welfare Benefit Trust Plan | - | 848 | $50,864 | - | - |
| U.S. Silica Company Cafeteria Plan | - | 848 | - | - | - |
| 2012 | 4 | 1,616 | $133,909,663 | $7,531,006 | $4,660iApproximate average salary by contribution assumption: employee only about $116,507 at 4% or $77,671 at 6%; with 50% employer match about $77,671 at 4% or $51,781 at 6%; with 100% employer match about $58,253 at 4% or $38,836 at 6%. |
| U. S. Silica Retirement Plan | - | 359 | $83,118,557 | $2,620,000 | $7,298iApproximate average salary by contribution assumption: employee only about $182,451 at 4% or $121,634 at 6%; with 50% employer match about $121,634 at 4% or $81,089 at 6%; with 100% employer match about $91,226 at 4% or $60,817 at 6%. |
| U.S. Silica Retirement Savings Plan | - | 796 | $50,737,543 | $4,911,006 | $6,170iApproximate average salary by contribution assumption: employee only about $154,240 at 4% or $102,827 at 6%; with 50% employer match about $102,827 at 4% or $68,551 at 6%; with 100% employer match about $77,120 at 4% or $51,413 at 6%. |
| U.S. Silica Company Welfare Benefit Trust Plan | - | 1,616 | $53,563 | - | - |
| U.S. Silica Company Cafeteria Plan | - | 1,616 | - | - | - |
| 2011 | 4 | 1,521 | $123,415,482 | $9,346,549 | $6,145iApproximate average salary by contribution assumption: employee only about $153,625 at 4% or $102,417 at 6%; with 50% employer match about $102,417 at 4% or $68,278 at 6%; with 100% employer match about $76,813 at 4% or $51,208 at 6%. |
| U. S. Silica Retirement Plan | - | 379 | $79,014,245 | $4,441,000 | $11,718iApproximate average salary by contribution assumption: employee only about $292,942 at 4% or $195,295 at 6%; with 50% employer match about $195,295 at 4% or $130,196 at 6%; with 100% employer match about $146,471 at 4% or $97,647 at 6%. |
| U.S. Silica Retirement Savings Plan | - | 721 | $44,347,175 | $4,905,549 | $6,804iApproximate average salary by contribution assumption: employee only about $170,095 at 4% or $113,397 at 6%; with 50% employer match about $113,397 at 4% or $75,598 at 6%; with 100% employer match about $85,048 at 4% or $56,698 at 6%. |
| U.S. Silica Company Welfare Benefit Trust Plan | - | 645 | $54,062 | - | - |
| U.S. Silica Company Cafeteria Plan | - | 1,521 | - | - | - |
| 2010 | 4 | 1,415 | $124,054,535 | $16,759,362 | $11,844iApproximate average salary by contribution assumption: employee only about $296,102 at 4% or $197,401 at 6%; with 50% employer match about $197,401 at 4% or $131,601 at 6%; with 100% employer match about $148,051 at 4% or $98,701 at 6%. |
| U. S. Silica Retirement Plan | - | 393 | $76,196,962 | $13,685,000 | $34,822iApproximate average salary by contribution assumption: employee only about $870,547 at 4% or $580,365 at 6%; with 50% employer match about $580,365 at 4% or $386,910 at 6%; with 100% employer match about $435,274 at 4% or $290,182 at 6%. |
| U.S. Silica Retirement Savings Plan | - | 642 | $47,798,326 | $3,074,362 | $4,789iApproximate average salary by contribution assumption: employee only about $119,718 at 4% or $79,812 at 6%; with 50% employer match about $79,812 at 4% or $53,208 at 6%; with 100% employer match about $59,859 at 4% or $39,906 at 6%. |
| U.S. Silica Company Welfare Benefit Trust Plan | - | 623 | $59,247 | - | - |
| U.S. Silica Company Cafeteria Plan | - | 1,415 | - | - | - |
| 2009 | 3 | 648 | $104,689,116 | $8,001,204 | $12,348iApproximate average salary by contribution assumption: employee only about $308,688 at 4% or $205,792 at 6%; with 50% employer match about $205,792 at 4% or $137,195 at 6%; with 100% employer match about $154,344 at 4% or $102,896 at 6%. |
| U. S. Silica Retirement Plan | - | 412 | $59,623,127 | $5,260,712 | $12,769iApproximate average salary by contribution assumption: employee only about $319,218 at 4% or $212,812 at 6%; with 50% employer match about $212,812 at 4% or $141,875 at 6%; with 100% employer match about $159,609 at 4% or $106,406 at 6%. |
| U.S. Silica Retirement Savings Plan | - | 648 | $45,009,783 | $2,740,492 | $4,229iApproximate average salary by contribution assumption: employee only about $105,729 at 4% or $70,486 at 6%; with 50% employer match about $70,486 at 4% or $46,991 at 6%; with 100% employer match about $52,864 at 4% or $35,243 at 6%. |
| U.S. Silica Company Welfare Benefit Trust Plan | - | 636 | $56,206 | - | - |
| 2008 | 7 | 690 | $88,464,254 | $4,218,923 | $6,114iApproximate average salary by contribution assumption: employee only about $152,860 at 4% or $101,906 at 6%; with 50% employer match about $101,906 at 4% or $67,938 at 6%; with 100% employer match about $76,430 at 4% or $50,953 at 6%. |
| U.S. SILICA RETIREMENT PLAN | - | 436 | $50,214,743 | $667,634 | $1,531iApproximate average salary by contribution assumption: employee only about $38,282 at 4% or $25,521 at 6%; with 50% employer match about $25,521 at 4% or $17,014 at 6%; with 100% employer match about $19,141 at 4% or $12,761 at 6%. |
| U.S. Silica Company Master Retirement Trust | - | 690 | $38,198,455 | $3,039,859 | $4,406iApproximate average salary by contribution assumption: employee only about $110,140 at 4% or $73,427 at 6%; with 50% employer match about $73,427 at 4% or $48,951 at 6%; with 100% employer match about $55,070 at 4% or $36,713 at 6%. |
| U.S. Silica Company Welfare Benefit Trust Plan | - | 505 | $51,056 | - | - |
| Us Silica Company Defined Contribution Master Trust | - | 0 | - | $511,430 | - |
| BMAC RETIREMENT PLAN I | - | 0 | - | - | - |
| U.S. Silica Retirement Savings Plan | - | 690 | - | - | - |
| U. S. Silica Retirement Plan | - | 436 | - | - | - |
| 2007 | 3 | 505 | $124,247,921 | $6,877,381 | $13,619iApproximate average salary by contribution assumption: employee only about $340,464 at 4% or $226,976 at 6%; with 50% employer match about $226,976 at 4% or $151,318 at 6%; with 100% employer match about $170,232 at 4% or $113,488 at 6%. |
| U.S. Silica Company Master Retirement Trust | - | 0 | $74,755,424 | $3,774,160 | - |
| Us Silica Company Defined Contribution Master Trust | - | 0 | $49,425,520 | $3,103,221 | - |
| U.S. Silica Company Welfare Benefit Trust Plan | - | 505 | $66,977 | - | - |
| 2006 | 3 | 687 | $118,466,308 | $6,578,836 | $9,576iApproximate average salary by contribution assumption: employee only about $239,405 at 4% or $159,603 at 6%; with 50% employer match about $159,603 at 4% or $106,402 at 6%; with 100% employer match about $119,702 at 4% or $79,802 at 6%. |
| U.S. Silica Company Master Retirement Trust | - | 0 | $70,921,239 | $3,633,345 | - |
| Us Silica Company Defined Contribution Master Trust | - | 0 | $47,451,698 | $2,945,491 | - |
| U.S. Silica Company Welfare Benefit Trust Plan | - | 687 | $93,371 | - | - |
| 2005 | 3 | 700 | $108,315,425 | $7,631,818 | $10,903iApproximate average salary by contribution assumption: employee only about $272,565 at 4% or $181,710 at 6%; with 50% employer match about $181,710 at 4% or $121,140 at 6%; with 100% employer match about $136,282 at 4% or $90,855 at 6%. |
| U.S. Silica Company Master Retirement Trust | - | 0 | $65,025,511 | $4,624,092 | - |
| Us Silica Company Defined Contribution Master Trust | - | 0 | $43,175,605 | $3,007,726 | - |
| U.S. Silica Company Welfare Benefit Trust Plan | - | 700 | $114,309 | - | - |
| 2004 | 3 | 715 | $103,592,294 | $6,307,434 | $8,822iApproximate average salary by contribution assumption: employee only about $220,540 at 4% or $147,026 at 6%; with 50% employer match about $147,026 at 4% or $98,018 at 6%; with 100% employer match about $110,270 at 4% or $73,513 at 6%. |
| U.S. Silica Company Master Retirement Trust | - | 0 | $62,162,220 | $3,534,048 | - |
| Us Silica Company Defined Contribution Master Trust | - | 0 | $41,289,082 | $2,773,386 | - |
| U.S. Silica Company Welfare Benefit Trust Plan | - | 715 | $140,992 | - | - |
| 2003 | 3 | 770 | $98,433,055 | $3,728,261 | $4,842iApproximate average salary by contribution assumption: employee only about $121,047 at 4% or $80,698 at 6%; with 50% employer match about $80,698 at 4% or $53,799 at 6%; with 100% employer match about $60,524 at 4% or $40,349 at 6%. |
| U.S. Silica Company Master Retirement Trust | - | 0 | $60,658,556 | $645,666 | - |
| Us Silica Company Defined Contribution Master Trust | - | 0 | $37,596,144 | $3,082,595 | - |
| U.S. Silica Company Welfare Benefit Trust Plan | - | 770 | $178,355 | - | - |
| 2002 | 3 | 722 | $84,774,818 | $3,633,553 | $5,033iApproximate average salary by contribution assumption: employee only about $125,816 at 4% or $83,877 at 6%; with 50% employer match about $83,877 at 4% or $55,918 at 6%; with 100% employer match about $62,908 at 4% or $41,939 at 6%. |
| U.S. Silica Company Master Retirement Trust | - | 0 | $51,233,653 | - | - |
| Us Silica Company Defined Contribution Master Trust | - | 0 | $33,386,711 | $3,633,553 | - |
| U.S. Silica Company Welfare Benefit Trust Plan | - | 722 | $154,454 | - | - |
| 2001 | 3 | 961 | $93,590,787 | $3,239,312 | $3,371iApproximate average salary by contribution assumption: employee only about $84,269 at 4% or $56,180 at 6%; with 50% employer match about $56,180 at 4% or $37,453 at 6%; with 100% employer match about $42,135 at 4% or $28,090 at 6%. |
| U.S. Silica Company Master Retirement Trust | - | 0 | $59,621,054 | - | - |
| Us Silica Company Defined Contribution Master Trust | - | 0 | $33,789,357 | $3,239,312 | - |
| U.S. Silica Company Welfare Benefit Trust Plan | - | 961 | $180,376 | - | - |
| 2000 | 10 | 856 | $44,419,742 | $1,447,032 | $1,690iApproximate average salary by contribution assumption: employee only about $42,261 at 4% or $28,174 at 6%; with 50% employer match about $28,174 at 4% or $18,783 at 6%; with 100% employer match about $21,131 at 4% or $14,087 at 6%. |
| U.S. SILICA COMPANY RETIREMENT PLAN FOR SALARIED EMPLOYEES | - | 154 | $38,496,565 | - | - |
| U.S. SILICA COMPANY 401K PLAN FOR HOURLY EMPLOYEES | - | 718 | $5,923,177 | $1,447,032 | $2,015iApproximate average salary by contribution assumption: employee only about $50,384 at 4% or $33,589 at 6%; with 50% employer match about $33,589 at 4% or $22,393 at 6%; with 100% employer match about $25,192 at 4% or $16,795 at 6%. |
| LONG TERM DISABILITY | - | 0 | - | - | - |
| ACCIDENTAL DEATH & DISMEMBERMENT AND BUSINESS TRAVEL | - | 0 | - | - | - |
| LIFE, HEALTH & DENTAL PLAN | - | 0 | - | - | - |
| U.S. SILICA COMPANY RETIREMENT SAVINGS AND INVESTMENT PLAN FOR SALARIED EMPLOYEES | - | 313 | - | - | - |
| U.S. Silica Company Welfare Benefit Trust Plan | - | 856 | - | - | - |
| U.S. SILICA COMPANY PENSION PLAN FOR HOURLY EMPLOYEES | - | 549 | - | - | - |
| Us Silica Company Defined Contribution Master Trust | - | 0 | - | - | - |
| U.S. Silica Company Master Retirement Trust | - | 0 | - | - | - |
| 1999 | 3 | 0 | $95,810,535 | $4,983,860 | - |
| U.S. Silica Company Master Retirement Trust | - | 0 | $60,957,553 | $299,849 | - |
| Us Silica Company Defined Contribution Master Trust | - | 0 | $34,852,982 | $4,344,458 | - |
| U.S. Silica Company Pension Plan for Hourly Employees at Berkeley Springs, Wv | - | 0 | - | $339,553 | - |