| 2024 | 1 | 180 | $0 | $0 | - |
| Group Life Insurance Plan Employees of Blackmer/Dover Fluid Management Inc. | - | 180 | - | - | - |
| 2023 | 1 | 173 | $0 | $0 | - |
| Group Life Insurance Plan Employees of Blackmer/Dover Fluid Management Inc. | - | 173 | - | - | - |
| 2022 | 1 | 145 | $0 | $0 | - |
| Group Life Insurance Plan Employees of Blackmer/Dover Fluid Management Inc. | - | 145 | - | - | - |
| 2021 | 2 | 133 | $0 | $0 | - |
| Group Life Insurance Plan Employees of Blackmer/Dover Fluid Management Inc. | - | 133 | - | - | - |
| Blue Cross Blue Shield of Michigan Blackmer Health Care Plan | - | 0 | - | - | - |
| 2020 | 1 | 242 | $0 | $0 | - |
| Group Life Insurance Plan Employees of Blackmer/Dover Fluid Management Inc. | - | 242 | - | - | - |
| 2019 | 1 | 275 | $0 | $0 | - |
| Group Life Insurance Plan Employees of Blackmer/Dover Fluid Management Inc. | - | 275 | - | - | - |
| 2015 | 1 | 0 | $0 | $0 | - |
| De-Sta-Co Industries Welfare Benefits Plan | - | 0 | - | - | - |
| 2014 | 2 | 204 | $0 | $0 | - |
| Group Life Insurance Plan Employees of Blackmer/Dover Fluid Management Inc. | - | 204 | - | - | - |
| De-Sta-Co Industries Welfare Benefits Plan | - | 48 | - | - | - |
| 2013 | 1 | 54 | $0 | $0 | - |
| De-Sta-Co Industries Welfare Benefits Plan | - | 54 | - | - | - |
| 2012 | 3 | 551 | $0 | $0 | - |
| Group Life Insurance Plan Employees of Blackmer/Dover Fluid Management Inc. | - | 251 | - | - | - |
| Blue Cross Blue Shield of Michigan Blackmer Health Care Plan | - | 551 | - | - | - |
| De-Sta-Co Industries Welfare Benefits Plan | - | 55 | - | - | - |
| 2011 | 4 | 311 | $0 | $0 | - |
| Blue Cross Blue Shield of Michigan Blackmer Health Care Plan | - | 189 | - | - | - |
| Group Life Insurance Plan Employees of Blackmer/Dover Fluid Management Inc. | - | 311 | - | - | - |
| De-Sta-Co Industries Welfare Benefits Plan | - | 51 | - | - | - |
| Norris a Dover Company Employee Welfare Benefit Plan | - | 0 | - | - | - |
| 2010 | 4 | 390 | $0 | $0 | - |
| Blue Cross Blue Shield of Michigan Blackmer Health Care Plan | - | 255 | - | - | - |
| Group Life Insurance Plan Employees of Blackmer/Dover Fluid Management Inc. | - | 307 | - | - | - |
| Norris a Dover Company Employee Welfare Benefit Plan | - | 303 | - | - | - |
| De-Sta-Co Industries Welfare Benefits Plan | - | 390 | - | - | - |
| 2009 | 5 | 313 | $0 | $0 | - |
| Norris a Dover Company Employee Welfare Benefit Plan | - | 247 | - | - | - |
| Blue Cross Blue Shield of Michigan Blackmer Health Care Plan | - | 245 | - | - | - |
| Group Life Insurance Plan Employees of Blackmer/Dover Fluid Management Inc. | - | 301 | - | - | - |
| Group Life Insurance Plan Employees of Blackmer/Dover Fluid Management Inc. | - | 301 | - | - | - |
| De-Sta-Co Industries Welfare Benefits Plan | - | 313 | - | - | - |
| 2008 | 4 | 538 | $0 | $0 | - |
| De-Sta-Co Industries Welfare Benefits Plan | - | 538 | - | - | - |
| Norris a Dover Company Employee Welfare Benefit Plan | - | 360 | - | - | - |
| Blue Cross Blue Shield of Michigan Blackmer Health Care Plan | - | 268 | - | - | - |
| Group Life Insurance Plan Employees of Blackmer/Dover Fluid Management Inc. | - | 326 | - | - | - |
| 2007 | 5 | 379 | $0 | $0 | - |
| C Lee Cook Hourly Employee Health Benefit | - | 118 | - | - | - |
| De-Sta-Co Industries Welfare Benefits Plan | - | 312 | - | - | - |
| Blue Cross Blue Shield of Michigan Blackmer Health Care Plan | - | 311 | - | - | - |
| Group Life Insurance Plan Employees of Blackmer/Dover Fluid Management Inc. | - | 225 | - | - | - |
| Norris a Dover Company Employee Welfare Benefit Plan | - | 379 | - | - | - |
| 2006 | 6 | 369 | $0 | $0 | - |
| C Lee Cook Hourly Employee Short Term Disability | - | 146 | - | - | - |
| C Lee Cook Hourly Employee Health Benefit | - | 120 | - | - | - |
| De-Sta-Co Industries Welfare Benefits Plan | - | 369 | - | - | - |
| Group Life Insurance Plan Employees of Blackmer/Dover Fluid Management Inc. | - | 223 | - | - | - |
| Blue Cross Blue Shield of Michigan Blackmer Health Care Plan | - | 302 | - | - | - |
| Norris a Dover Company Employee Welfare Benefit Plan | - | 274 | - | - | - |
| 2005 | 5 | 422 | $0 | $0 | - |
| C Lee Cook Hourly Employee Short Term Disability | - | 168 | - | - | - |
| Blue Cross Blue Shield of Michigan Blackmer Health Care Plan | - | 330 | - | - | - |
| Group Life Insurance Plan Employees of Blackmer/Dover Fluid Management Inc. | - | 224 | - | - | - |
| De-Sta-Co Industries Welfare Benefits Plan | - | 422 | - | - | - |
| Norris a Dover Company Employee Welfare Benefit Plan | - | 259 | - | - | - |
| 2004 | 4 | 514 | $0 | $0 | - |
| C Lee Cook Hourly Employee Short Term Disability | - | 112 | - | - | - |
| Blue Cross Blue Shield of Michigan Blackmer Health Care Plan | - | 325 | - | - | - |
| Group Life Insurance Plan Employees of Blackmer/Dover Fluid Management Inc. | - | 234 | - | - | - |
| De-Sta-Co Industries Welfare Benefits Plan | - | 514 | - | - | - |
| 2003 | 8 | 524 | $0 | $0 | - |
| Group Life Insurance Plan Employees of Blackmer/Dover Fluid Management Inc. | - | 217 | - | - | - |
| C Lee Cook Salaried Employees Health Benefit | - | 90 | - | - | - |
| C Lee Cook Hourly Employee Health Benefit | - | 0 | - | - | - |
| Blue Cross Blue Shield of Michigan Blackmer Health Care Plan | - | 0 | - | - | - |
| C Lee Cook Term Life and Add | - | 0 | - | - | - |
| C Lee Cook Hourly Employee Short Term Disability | - | 113 | - | - | - |
| C. Lee Cook Hourly Employees Dental | - | 0 | - | - | - |
| De-Sta-Co Industries Welfare Benefits Plan | - | 524 | - | - | - |
| 2002 | 11 | 275 | $0 | $0 | - |
| DOVER RESOURCES INC RONNINGEN PETTEER GROUP LIFE POLICY TERM AD&D | - | 107 | - | - | - |
| C Lee Cook Hourly Employee Short Term Disability | - | 101 | - | - | - |
| C Lee Cook Term Life and Add | - | 198 | - | - | - |
| C. Lee Cook Hourly Employees Dental | - | 98 | - | - | - |
| Blue Cross Blue Shield of Michigan Blackmer Health Care Plan | - | 275 | - | - | - |
| DE-STA-CO GROUP MEDICAL PLAN | - | 0 | - | - | - |
| DOVER RESOURCES, INC. EMPLOYEE BENEFIT PLAN | - | 0 | - | - | - |
| Group Life Insurance Plan Employees of Blackmer/Dover Fluid Management Inc. | - | 220 | - | - | - |
| NORRIS, A DOVER COMPANY EMPLOYEE WELFARE BENEFIT PLAN | - | 210 | - | - | - |
| C Lee Cook Hourly Employee Health Benefit | - | 102 | - | - | - |
| C Lee Cook Salaried Employees Health Benefit | - | 87 | - | - | - |
| 2001 | 11 | 382 | $0 | $0 | - |
| DOVER RESOURCES INC./RONNINGEN-PETTER GROUP LIFE POLICY TERM AD & D | - | 48 | - | - | - |
| Group Life Insurance Plan Employees of Blackmer/Dover Fluid Management Inc. | - | 282 | - | - | - |
| C Lee Cook Term Life and Add | - | 269 | - | - | - |
| C Lee Cook Hourly Employee Health Benefit | - | 110 | - | - | - |
| C Lee Cook Hourly Employee Short Term Disability | - | 159 | - | - | - |
| C. Lee Cook Hourly Employees Dental | - | 156 | - | - | - |
| Blue Cross Blue Shield of Michigan Blackmer Health Care Plan | - | 299 | - | - | - |
| Dover Resoures Inc. / Ronn0Ingen-Pette R Division Hospital & Medical Plan | - | 105 | - | - | - |
| NORRIS A DOVER COMPANY EMPLOYEE WELFARE BENEFIT PLAN | - | 240 | - | - | - |
| C Lee Cook Salaried Employees Health Benefit | - | 117 | - | - | - |
| DE-STA-CO GROUP MEDICAL PLAN | - | 382 | - | - | - |
| 2000 | 10 | 324 | $387,133 | $30,000 | $93iApproximate average salary by contribution assumption: employee only about $2,315 at 4% or $1,543 at 6%; with 50% employer match about $1,543 at 4% or $1,029 at 6%; with 100% employer match about $1,157 at 4% or $772 at 6%. |
| Cook Manley - a Dover Resources Company Retirement Plan | - | 50 | $387,133 | $30,000 | $600iApproximate average salary by contribution assumption: employee only about $15,000 at 4% or $10,000 at 6%; with 50% employer match about $10,000 at 4% or $6,667 at 6%; with 100% employer match about $7,500 at 4% or $5,000 at 6%. |
| C. Lee Cook Hourly Employees Dental | - | 203 | - | - | - |
| C Lee Cook Hourly Employee Short Term Disability | - | 205 | - | - | - |
| C Lee Cook Hourly Employee Health Benefit | - | 205 | - | - | - |
| C Lee Cook Salaried Employees Health Benefit | - | 99 | - | - | - |
| C Lee Cook Term Life and Add | - | 324 | - | - | - |
| Dover Resoures Inc. / Ronn0Ingen-Pette R Division Hospital & Medical Plan | - | 106 | - | - | - |
| Group Life Insurance Plan Employees of Blackmer/Dover Fluid Management Inc. | - | 227 | - | - | - |
| Blue Cross Blue Shield of Michigan Blackmer Health Care Plan | - | 292 | - | - | - |
| DOVER RESOURCES INC./ RONNINGEN PETTER GROUP LIFE POLICY TERM AD&D | - | 129 | - | - | - |
| 1999 | 8 | 289 | $368,723 | $1,810,602 | $6,265iApproximate average salary by contribution assumption: employee only about $156,626 at 4% or $104,418 at 6%; with 50% employer match about $104,418 at 4% or $69,612 at 6%; with 100% employer match about $78,313 at 4% or $52,209 at 6%. |
| Cook Manley - a Dover Resources Company Retirement Plan | - | 53 | $368,723 | - | - |
| Blue Cross Blue Shield of Michigan Blackmer Health Care Plan | - | 286 | - | - | - |
| C. Lee Cook Hourly Employees Dental | - | 180 | - | $42,445 | $236iApproximate average salary by contribution assumption: employee only about $5,895 at 4% or $3,930 at 6%; with 50% employer match about $3,930 at 4% or $2,620 at 6%; with 100% employer match about $2,948 at 4% or $1,965 at 6%. |
| C Lee Cook Hourly Employee Short Term Disability | - | 176 | - | $48,303 | $274iApproximate average salary by contribution assumption: employee only about $6,861 at 4% or $4,574 at 6%; with 50% employer match about $4,574 at 4% or $3,049 at 6%; with 100% employer match about $3,431 at 4% or $2,287 at 6%. |
| C Lee Cook Salaried Employees Health Benefit | - | 99 | - | $651,906 | $6,585iApproximate average salary by contribution assumption: employee only about $164,623 at 4% or $109,748 at 6%; with 50% employer match about $109,748 at 4% or $73,166 at 6%; with 100% employer match about $82,311 at 4% or $54,874 at 6%. |
| C Lee Cook Term Life and Add | - | 289 | - | $92,075 | $319iApproximate average salary by contribution assumption: employee only about $7,965 at 4% or $5,310 at 6%; with 50% employer match about $5,310 at 4% or $3,540 at 6%; with 100% employer match about $3,982 at 4% or $2,655 at 6%. |
| C Lee Cook Hourly Employee Health Benefit | - | 178 | - | $975,873 | $5,482iApproximate average salary by contribution assumption: employee only about $137,061 at 4% or $91,374 at 6%; with 50% employer match about $91,374 at 4% or $60,916 at 6%; with 100% employer match about $68,530 at 4% or $45,687 at 6%. |
| Dover Resoures Inc. / Ronn0Ingen-Pette R Division Hospital & Medical Plan | - | 118 | - | - | - |